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Chrome Dokuro, her original name being Nagi, is the unofficial Tenth Generation Mist Guardian of the Vongola Famiglia. She serves as Mukuro's vessel and connection to the world outside the Vendicare Prison.
Chrome is a short, slim, and rather petite girl. She is often described as a cute and sweet girl, as commented by Mukuro, Belphegor, and Julie, or when she transfers to Namimori Middle School and attracts the attention of many of her male classmates. She has short, pineapple-shaped, purple hair and violet eyes. Her right eye is covered with a black eye patch with a chrome-colored skull (髑髏, Dokuro) after being injured in a car crash. During her daily activities in the future, she sometimes replaced her skull eyepatch with the normal one.
She is mostly seen wearing the green Kokuyo Middle School uniform like the rest of the Kokuyo Junior High Gang. She has also been seen wearing the Simon uniform or Namimori uniform. With whatever she wears, she was usually seen with her bag, in which she stores her Trident. In a chapter cover which shows her current self and Nagi, Nagi is shown to wear a sailor uniform, implying that she used to attend public school prior to her accident. When in an illusionary world, she has longer hair with bangs covering her lost right eye and was seen wearing a plain white gown. This is shown to be a similar version of Nagi before the incident minus the hair covering her right eye.
The Future version of her is briefly seen at the end of the Future Arc. From her younger counterpart, Chrome had let her hair grow back longer with her bangs being short but off to the right side; she had gotten rid of her skull eye patch and the "pineapple" hair. It's also shown she has a sense of style wearing a simple shirt, skirt, with a jacket. Contrary to this, in other official artwork, Chrome had her bangs even shorter and still retained a "pineapple" hairstyle with her longer hair look. She also had a different styled eye patch with stars on it.
Due to her once anti-social life as Nagi, she has difficulty opening up to others, except to Mukuro. Because she is used to being neglected and treated poorly, actions where someone is kind and caring to her makes her very confused and shy, such as when she avoided Kyoko and Haru who were being friendly to her. Bianchi noted this that while being kind was natural to Kyoko and Haru, to Chrome, it was completely new and alien to her. Because of her timid nature, she never talks nor fights back if someone badmouths or even hurt her, and merely accepted it calmly, such as when Ken or M.M. mocks her or slaps her. This made some people can't be honest with her or think of her as pitiful, though this didn't stop them from showing concern for her every now and then. She also lacked confidence and used to tend on Mukuro for help, despite her own desire to become stronger. Her lack of self-esteem and her dependency on Mukuro consequently hindered her growth. However, as the story progress, she becomes determined to become stronger and independent to help the people who are dear to her with her own power.
She was once a girl named Nagi, she lived an isolated and antisocial life. After trying to rescue a cat, she was severely injured in a car accident, which led to the loss of her red eye and some internal organs.
Nagi was taken to the hospital, where the doctors informed her mother that the only way her life could be saved is if someone with the same blood type transferred their organs to her. Nagi's mother didn't care whether or not she lived and refused to sacrafice her own lives for her organs. Unbeknownst to her mother, Nagi was conscious and heard the conversation, in the process she lost her will to live and accepted her death. Before killed, she was saved by Mukuro Rokudo, who heard her words and lived by creating illusionary organs. When Nagi is revived, she realizes her meeting with Mukuro was real and cries in relief and happiness, Mukuro provides her with a new name. Chrome Dokuro.
She immediately ran away from the hospital and went to the neighbor town, Kokuyo as ordered by Mukuro. On her way there, she stopped Ken Joshima asleep on the nearby park. Under the belief that he looks like he's going to die, she sits his head on her lap to make it comfortable for him to sleep. When he awoke, he was surprised, causing him to shout angrily at Chrome until he feels hungry. Realizing this, she gave him an apple, which reminded Ken of his past when Mukuro also gave him an apple when he and Chikusa were hungry, he tearfully eats the apple and leaves the park.
Unknowingly to him, Chrome follows them all the way to Kokuyo Land. Ken and Chikusa were already aware of her due to her connection with Mukuro that they were informed about prior. She explains to the two that Mukuro ordered her to accompany them until he's freed from Vendicare. In response, Ken decides to cut Chrome's hair into a shorter style, matching that of Mukuro, and the two let her stay in Kokuyo Land with them.
Chrome was chosen to be the hoder of the Half-Vongola Mist Ring, she introduces herself in the school gymnassium of Namimori Junior High. At first she's assumed that it's actually Mukuro in disguise by Hayato, who points out that her eyepatch suspiciously covers his right eye. In spite of Hayato's remarks, Tsuna believes that she's not Mukuro, and Chrome responds by giving Tsuna a kiss on the cheek as a form of greeting.
She faces off against Mammon during the early stages of her match, but was overwhelmed once Mammon got a bit serious. Mammon, soon realizing that her trident was the key to her power, began targeting that, and, shortly after, was able to destroy it.
This led to an unusual phenomenon where Chrome lost some of her organs, and seemingly lost the match. She collapsed and her stomach caved in. On the verge of defeat, Chrome briefly remembered her past and cried as she communicated with Mukuro, telling him that she wanted to help him. Responding to her call, Mukuro told her to rest and her body covered with mist, switching place with Mukuro and quickly turned the tide. Mukuro soon defeated Mammon, winning the match, but having used too much of his power, his grip on his real illusion faded, returning the body back to Chrome. She was then taken to Namimori Hospital since Ken and Chikusa refused to take her back with them. The next morning, she met Tsuna when he intended to visit Lambo and she assured him that Mukuro will be alright before returning to Kokuyo Land.
In the Cloud Ring Battle, she, Ken, and Chikusa watched Hibari's fight against Gola Mosca. When the Gola Mosca went on a rampage, she ran as she tried to evade the attack, but accidentally stepped on mines buried within the battlefield. She was saved by Ken and Chikusa, but the three were then cornered between the rampaging Mosca and gattling gun until Tsuna saved them.
In the Sky Ring Battle, she was captured by Bel and Mammon and held hostage to convince Gokudera and Yamamoto to give up their Rings. Gokudera and Yamamoto attempted to save her but were caught in an illusion; however, Ryohei came to the rescue and broke the illusion. When Mammon attempted to escape after all fifty Varia backup members were defeated by Lancia, she prevented him from escaping.
According to Kusakabe, five years before Tsuna and the others were transported to the Future, Future Chrome, Ken, and Chikusa attempted to break Mukuro out from Vendicare Prison but the attempt failed and the three were separated, their status, unknown. However, five years afterwards, half a year before Tsuna's arrival to the future, Glo Xinia was said to have defeated Mukuro while he was possessing Chrome. Before he could defeat her too, Future Chrome escape by throwing herself out of the window. She later encountered Guedo Greco at airport in Italy while he was being possessed by Mukuro, and instructed her to go to Kokuyo Land.
Reaching Kokuyo Land, Future Chrome was replaced by her past-self who was then confronted by Glo Xinia and is quickly overpowered. But with the help of Future Mukuro, she was able to thaw out her Ring and defeat him. Ryohei later brought Chrome to the Vongola Base. As she lay in bed sick, her illusionary internal organs begin to fail and disappear due to Mukuro's defeat by Byakuran. However, she was able to use the Vongola Mist Ring to sustain her organs via her own Illusions with thanks to Hibari's instruction. During the Invasion of the Merone Base, she appeared using Illusions to disguise herself with Hibari, Kusakabe, Lambo, and I-Pin. Along with the other Vongola Guardians, Chrome was given a Vongola Box Weapon.
Back to the past to participate in the Arcobaleno Trials, Chrome was visited by Mukuro in the illusionary world. Mukuro asked where she was for the past three days, but Chrome was unable to answer and Mukuro let her to keep it to herself. Mammon, disquised as Tsuna, confronted Chrome and demanded her to call Mukuro, frightening her and prompting Mukuro to switch place with her until Tsuna cleared Skull's trial. Tsuna later gave her a bento, remembering that Chrome didn't eat much back at the future, which Chrome gratefully accepted.
During Reborn's trial, Chrome and the other Guardians fights Reborn, but they were easily defeated. She later also participated in Verde's trial, helping Tsuna and the other Guardians to fight the prototype Box Weapons that Verde created. After Tsuna received both seals from Reborn and Verde, she returns to Kokuyo Land and once again communicates with Mukuro who asks her involvement with Vongola and Arcobaleno, but didn't force her when she was reluctant to answer since all that matters is she is safe. The next day, she returned to the future with everyone, preparing for the Choice Battle.
Upon returning to the Future, the other members of the Famiglia were at first worried that Chrome wasn't eating. However, once she established a friendship with I-Pin, she began joining them for dinner. She later began training to master her Illusions with the virtual training challenge created by Mammon and her combat abilities with Bianchi and I-Pin. Chrome was not one of the participants in Choice and therefore watched the battle from the Vongola viewing area.
After being sent back to the past for the Inheritance Succession Viper was chosen to be Chrome's tutor. Chrome later went missing for several days only to return to Kokuyo Land, greatly upset and crying. Upon being questioned by Kyoko, Haru and I-Pin, she stated that she no longer wished to fight, leading the other Guardians to think she would be better off staying in the past with the other girls. It was later revealed that Vongola first Mist Guardian Daemon Spade had taken control of Chrome in order to draw the girls out and hold them as hostages. The group was then trapped in an illusion with limited oxygen, and while the other Guardians attempted a rescue, Chrome attempted to break the illusion. With Viper acting as a guide, she was able to accomplish. Later Daemon gave Chrome her inheritance after expressing an interest in Mukuro, who had appeared briefly to save Chrome.
After returning from the past, the Six Funeral Wreaths tried to capture Yuni. Chrome used her Vongola Mist Owl Cambio Forma to see through the enhanced illusions created by Torikabuto, aiding Tsuna in his fight. During the day of the final battle, Chrome delivered the Vongola Mist Box to Mukuro but fainted shortly after seeing him for the first time. After Byakuran was defeated, M.M warned Chrome that Mukuro was only using her to escape from prison. Before Chrome could respond to this, they were interrupted by Ken, Mukuro, and Chikusa who told her that it's about time to return to the past. As she faced Mukuro, she said that she's also happy to finally able to meet him in person. Once she returned to the past along with the others, she smiled as she looked at her Mist Vongola Box Ring before switched placed with Mukuro.
Back in the past Chrome was stalked by Julie Katou, a transfer from Simon Middle School, who also secretly started delivering foods to her. He later introduced herself and asked her to go on a date and run away with him after the inheritance ceremony. However, she softly rejected him and just left him standing there, making Julie commented that she's cute.
Later, after Yamamoto was attacked, Chrome created an illusion of him for Tsuna's Inheritance Ceremony so that the other Mafia members would remain unaware of his absence. During the inheritance ceremony, she, along with the other guardians (excluding Lambo), was defeated by Enma. When the Simon Famiglia took their leave after Enma defeated Tsuna, she was taken along by Julie, dropping her Vongola Ring and Animal Ring on the ground in the process.
After awakening to find herself trapped at Simon Island, Chrome attempted to escape but was stopped by Julie who demonstrated that he was creating her illusionary organs for her as the Island had a barrier that prevents Mukuro's illusions from passing through. When Chrome refused his offer to become his, Julie then explained that he was responsible for the entire battle between the Simon and Vongola for two goals, first for complete annihilation of Vongola and second was her. As he said this, he revealed his true identity as Daemon Spade in disguise. When he requested for Chrome to submit her body by her own will, she refused and Daemon then punished her by proceeding to take control of Chrome's mind in order to draw out Mukuro so he can take his body.
She's seen again alongside Daemon, after he finally revealed his true identity and plans to Tsuna and the others. She creates a mist barrier that traps Tsuna and the others with her technique, Cortina Nebbia, to prevent them fighting Daemon all together at once. Hearing Daemon's intention to take over Mukuro's body, Hibari threatened Daemon by breaking the barrier, but Daemon warned Tsuna and the group that if the barrier is broken; Chrome, the creator, will be killed. When Yamamoto managed to injure Daemon with his new technique, Chrome interfered and refused to step back until Daemon ordered her to. Before she left the battlefield with Daemon, Yamamoto gave her the Ore of Mist Version X and told her that they will always wait for her.
The next day, when the Simon Ring finally fully awakened, she was tied up as Daemon undid the mind control on her and told her that he will let her meet Mukuro. Chrome asked why now, which he replied that it's a perfect time because he can fight Mukuro with the fully awakened Desert Simon Ring. Chrome realized that he was using her as a bait to lure out Mukuro and shouted that she won't let it happen. Daemon replied that no one is there to listen to her opinion, since the one who will decide is Mukuro and he opened the barrier of the island. Chrome urgently pleaded at him to stop, but it's already too late and Daemon removed her illusionary organs to lure out Mukuro; as Chrome spit out blood, she silently pleaded Mukuro to not come but soon blacked out. After this, mist surrounded Chrome and Mukuro appeared, replacing her.
After the fight of Mukuro and Daemon, Mukuro leaves Chrome to Tsuna and changed back into Chrome. When she woke up she asks where is Mukuro and Tsuna replied that Mukuro had already defeated Daemon, making her glad. However, Chrome and the others were shortly surprised when they heard Mukurou, the box animal, speaking and knew that there was trouble regarding Mukuro's body in Vindice. Julie suddenly woke up and asked about the situation. Tsuna and Gokudera said that Daemon is still alive and is inside Julie which Chrome and Mukuro immediately replied that he is no longer Daemon. Mukuro concluded that Daemon had taken over his body, surprising them. At the confrontation with Daemon, she was saved by Yamamoto from being sent to Daemon's illusionary world. She intended to assist Tsuna and Enma to see through Daemon's illusions but Daemon threatened that he will kill her with Mukuro and Reborn if they were to assist them and told them to watch. However, she finally interferes when Tsuna hesitates to shoot Enma along with Daemon by protecting Enma with her Barrier Mist Flames in full power that were also supported by Mukuro. After Daemon was defeated, she and the others returned to Namimori, with Mukuro freed by the Vindice after acknowledging his effort during the battle with Daemon.
Transfer to Nami-Middle
Tsuna and the others are surprised to see that Chrome has been transferred to Nami Middle. She stood at the front of the classroom to introduce herself, but breaks down crying in Kyoko's arms. When discussing this between classes, Ryohei told them that according to what Kyoko has heard from Chrome, she was kicked out of Kokuyo Gang by Mukuro. When she woke up in the morning, she only found a note that telling her to get out and a Nami-Middle uniform, and Kokuyo Land already empty. Gokudera then commented that since Mukuro was free from jail, he doesn't need Chrome anymore. Tsuna seemed to have doubts about that representation of events. Reborn then arrived and told them that he was convened by Mukuro to talk about Chrome and was given her living expenses by Mukuro as well. Since Chrome has already arrived in Namimori, Reborn said that settling her in to either Kyoko or Haru's house would be for the best until they found a place for her to live. Reborn then suggests a welcoming party for Chrome at Tsuna's house, with the theme of a mimicry contest. At the party, Chrome thanks everyone for throwing it for her with the moral support of Haru and Kyoko and holding a mimicry contest where the loser must become Chrome's errand boy for a year.
1st Day of Representative Battle of the Rainbow
Later on the first day of the Representative Battle of the Rainbow, during classes, she was shown to be having a cold. After school, on her way home, she was approached by illusion that Mukuro created to check on whether she was getting better or not. However, seeing her, he states that her condition has worsened as he had thought. Mukuro tells Chrome to tell him everything about her condition; otherwise, she was going to die, much to Chrome's shock. The next day, Tsuna noticed that Chrome was not present at school and wondered did something happened to her.
3rd Day of Representative Battle of the Rainbow
After the second Representative Battle of the Rainbow, when Tsuna, Gokudera, and Yamamoto visited the hospital to check on Team Skull's condition after defeated by Team Bermuda, they bumped into Kyoko, who told them that Chrome's internal organs are gone. Tsuna rushed into the ICU and saw that she was really worn out. Tsuna apologized for not acting upon her absence even though he noticed it, but Chrome ignored his apology and instead requested Tsuna so she could be placed on Team Reborn. Tsuna refused as Reborn is the one who decides on the team and worried about her condition, but Chrome still pleads to him; despite that, Tsuna still refuses. Later, however, during the battle between Team Reborn and Team Verde against Team Bermuda, Chrome appeared at the battlefield as Reborn's sixth representative and offered to support Mukuro's illusion, joining the fight. At this moment, the cause behind Chrome's illness is revealed; With Mukuro freed from the Vindice prison, Chrome began to contemplate her own existence as a separate person from Mukuro, bringing her into an internal conflict with herself, which in turn made her slowly reject Mukuro's illusions that projected her organs, which slowly deteriorated her health. However, remembering Reborn's question of what she wants to be to Mukuro, she finally found her resolve to protect people that she loves. Chrome was able to recreate illusionary organs with her own power and by using Verde's equipment, assisted Mukuro's illusion. By combining both of their illusions, they able to create a much more powerful version of Genju Gagaia, Genju Mugaia.
4th Day of Representative Battle of the Rainbow
Chrome didn't return to Kokuyo Land for unknown reason and met Tsuna and Kyoko during her way to school. After school, she, along with Kyoko, Haru, and I-Pin went to Tsuna's house after fixing the lucky charms for Tsuna, Gokudera, and Yamamoto. They were surprised when seeing large amount of people gathering at Tsuna's house. Bianchi told Kyoko and Haru to leave the house until the meeting is over while Chrome stay to join the meeting and was chosen as one of the representatives who will fight in battle against Team Bermuda.
In the afternoon, after the watch announced the start of the battle, she, along with Gokudera, Yamamoto, and Flan fought against Small Gia and Big Pino. She creates illusions with Flan to buy some times until Tsuna, Enma, and Basil arrives after defeating Alejandro. However, Small Gia and Big Pino able to located them and destroyed their illusions, exposing them. Fortunately, before Big Pino's next attack could hit them, Enma used his gravity manipulation to float four of them into the air, saving them. When Tsuna's vision was blinded by one of Small Gia's weapons, Yamamoto and Gokudera immediately interferes and with Enma's help, straining the two Vindice's movements.
As they're straining them, Gokudera asked for Chrome's help for their plan. Chrome immediately told Flan to protect them with Verde's device. Flan at first, refused, since he's tired, scared, and annoyed, but, after her firm insistence, he agreed under condition that she'll kiss him on cheek if it goes well. With her aid, Flan created ceramic that covered Gokudera's and Yamamoto's body as the dynamites explode, destroying Small Gia's and Big Pino's wrist watches without harming the two. After recovering from the previous battle, she and the others went to where the remaining team members are. She, Enma, and Flan helped Tsuna from Jager's attack, but quickly defeated in instant, rendering them unconscious. Later, her watch, including the other fallen members' watches, are destroyed by Bermuda to prevent them from assisting Tsuna.
After Bermuda was defeated, she, Mukuro, and Flan are submitted into Namimori Hospital along with the Varia, Byakuran, Dino, Basil, and Hibari. She was seen in Mukuro's room along with the other members of Kokuyo Gang who were visiting him when Hibari destroyed the wall that lead to Mukuro's room. In the last chapter, several days after the battle, Chrome is last seen in front of Tsuna's house, waiting for him along with the others, invited by Reborn to celebrate Tsuna's tutelage.
From the flashback, it can be assumed that she's not in a good relationship with both her mother and her step-father. From what her mother said, Chrome and her mother were never close with each other, since she couldn't even understand her own daughter and willingly let her die. Her step-father also cares for his work more than his step-daughter since he was annoyed when her accident forced him to leave an important meeting, and doesn't seem to have considered her as such since they are not related by blood. It's never been shown how Chrome feels for them, but she's clearly upset by their treatments.
Like Ken and Chikusa, Chrome is loyal and devoted to Mukuro, and cares deeply for him since he gave her a chance to live and was the first person who claimed that he needed her and accepted her, something that nobody, not even her own parents, ever did. She is very respectful of him, always addressing him as "Mukuro-sama." He was the first person she willingly opened up to, and still is the one she places her utmost trust in. Chrome is willing to do anything for his sake and safety, regardless of her fate's outcome, even on the verge of death. These feelings eventually grow into love and a wish to always protect him.
Mukuro, for his part, is exceptionally kind towards her, although whether it is honest behavior or just an act is soon brought into question. At the end of the Future Arc, M.M warned her that Mukuro was just using her to get out of Vendicare Prison. Future Mukuro referred to Chrome as an "ignorant little girl" who took his words and actions at face value. His feelings and motives become much more complex and confusing after he is freed out of the Vendicare Prison; he kicked Chrome out of the Kokuyo Gang and told Tsuna that he detested the current her. However, despite these statements, Mukuro still visited her to check on her condition. He eventually revealed that he left her because he wanted her to become an independent warrior with the ability to stand up for herself, acknowledging her high potential. Despite his mysterious intentions, Chrome continues to love and have faith in Mukuro. Her feelings towards him are what supporting her to grow stronger for the sake of his and those he held dear. What Mukuro feels for Chrome remains unresolved, but it was strongly hinted that he genuinely cares for her.
At first, Chrome thought of them as important to her because they are important to Mukuro. However, after spending more time with them, Chrome started to care for them deeply from her heart, not only because of their connection with Mukuro, considering them as her first comrades that she trusts. Even though Ken always mocks and berates her, she doesn't seem to mind it. Ken and Chikusa initially thought of her merely as Mukuro's container, but they eventually grow to care for her though they refuse to show it, especially Ken. Evidence of this can be seen when they saved her during the Cloud Ring Battle from a bomb explosion and the Sky Match where Ken constantly complained that they couldn't see Chrome's condition. In the Arcobaleno Trial Arc, Ken gave her many sweets and when asked by Chikusa, he said he only bought it because they haven't used any money since her disappearance. Chikusa, aware of Ken's real intention, accepts this story, much to Ken's anger. In Inheritance Succession Arc, both Ken and Chikusa were worried when Chrome came back crying after missing for few days and Ken tried to cheer her up by bought her many sweets, which he hotly denied when Chikusa realized his attention. Ken shows a fondness of her by buying her treats and blushing when she's mentioned in certain situations if she's not around.
After being kicked out of the Kokuyo Gang, Chrome distances herself from Ken and Chikusa, in favor of spending time with Kyoko and Haru in Namimori. Though in the REBO to DLIVE artbook, Chrome is seen helping Ken, Chikusa, and Fran carry multiple bags and boxes, which implies that they have made amends and became friends.
M.M. is seen to have a huge dislike towards Chrome and this could be because of her possible feelings towards Mukuro and Chrome's "pitiful" behavor. She has been slapping her and insulting her on some occasions for this. But after the final battle with Byakuran, she told Chrome to stay away from Mukuro since he was a fearsome person, and she was concerned about it. She also shows concern when Chrome came to help Mukuro fight Vindice because of the state her body was in. This may mean she has some level of concern for Chrome. Chrome doesn't have any anger nor hatred towards her, but instead views her as one of people whom she held dear.
Despite being Mukuro's student, Chrome and Flan hardly had any interaction. However, Chrome has shown to be one of the few people that could actually control Flan, being able to make him use Verde's device to help Gokudera and Yamamoto from getting killed by the Vindice. Flan seems to not treat her as he does the other people, not insulting her, even though Chrome has the same hairstyle as Mukuro. He even seems to display a small crush on her, muttering about wanting a kiss form her if he were to help her with Verde's device.
Chrome sees Tsuna as her boss and took an immediate liking to him for being the second person to accept her after Mukuro, even granting him a kiss. Like most of the Guardians, she is loyal to Tsuna and willing to follow him even in the face of danger. When Kyoko and Haru were on a strike against Tsuna and the others in the future, Chrome sided with Kyoko and Haru, but she did admit later on that the struggles Tsuna went through along with the others are great, and thus being hurt from training didn't bother her, showing how much she struggled to be a worthy member of the Guardians for Tsuna.
Regardless of her connection with Mukuro, Tsuna sees Chrome as an important friend and always treats her nicely, just like he does to the other Famiglia members. He occasionally shows concern for her well-being when she is in danger or sad such as when she was kidnapped by Daemon and when she was kicked out from Kokuyo by Mukuro. He even displayed anger towards Mukuro when he believed that Mukuro abandoned Chrome.
In the beginning, I-Pin, Kyoko, and Haru's acts of kindness whenever she was with them were extremely confusing to her, making her run away to her room to avoid them. However, when I-Pin went to her room and offered a bun to eat and ate together with her, Chrom began to slowly warm up to her and the others, even going to help with the kitchen, much to her embarrassment when Haru and Kyoko found her. She then begins to help Kyoko and Haru prepare dishes for the boys, ate dinner with them regularly, and even joined their boycott against Tsuna and the others for keeping secrets for them. Despite the respect she had for Tsuna, she believed that they shouldn't keep secrets from Kyoko and Haru. However, she did make Kyoko and Haru consider Tsuna's struggles when they noticed an injury Chrome had on her back.
I-Pin, Kyoko, and Haru often encourage her gently to be more sociable and accept other people's kindness. Since then, she became much closer to them, especially after she left Kokuyo, as she sought them for comfort after being kicked out from Kokuyo, who helped her feel better. She then began to regularly spend more time with them. Her bond with them continued to grow as she even stayed with them rather than return to Mukuro even after she attained her independence as a warrior that Mukuro acknowledged.
Weapons and Abilities
Chrome is a talented illusionist and fighter, something that Mukuro and Mammon acknowledges. Her illusion is so strong that Mammon stated during their battle that if he had believed Chrome's illusion for a second, he would be done for. Also, during the inheritance ceremony, Mammon stated that only a true expert could see through her illusion. Unfortunately, Chrome's lack of confidence and her dependency on Mukuro limited her growth. Once she's able to overcome her dependency, her true skill finally flourished and she able to create her own organs just as strong as the ones Mukuro gave her. She became strong enough to the point Mukuro commented that her power was even greater than Flan's, who was powerful enough to make illusions that could even fool the Vindice.
- Six Paths of Reincarnation: Because Mukuro shares Chrome's body, she is granted the powers of Six Paths of Reincarnation though so far she is only proficient in Illusions and summoning animals. After Mukuro was freed, however, she's unable to use this technique again as they no longer share one body.
- Cortina Nebbia: She is able to create a Mist Barrier from her Mist Flame, that traps anyone in it. When under Daemon's control, this technique become dangerous for the creator itself; if the barrier ever is broken, the creator will die.
- Genjū Mugaia: She combines her illusion with Mukuro's illusion and creates a much more powerful version of Genjū Gagaia.
- Trident: Chrome uses a Trident similar to Mukuro's. The Trident can fit into a small bag by retracting the poles of the Trident and the handle. Mukuro constructed the trident for her using his illusions. Later, she is able to construct her own Trident that differs from Mukuro's with only a single spike.
- Vongola Mist Ring: Won during the Mist Ring Battle. As part of the Tri-ni-set it is classed as S-rank. Chrome shares the Ring with Mukuro and usually wears it when he is in jail. Ten years in the Future, the Vongola Rings were destroyed by Tsuna, however they were later brought back from the past with the Ten Year Bazooka. Chrome is capable of bringing out Mist Dying Will Flames from her Ring and uses its Construction ability to create Real Illusions. The Vongola Guardians were later accepted by the First Vongola Boss as the rightful owners of the Vongola Rings and were granted their true forms.
- Gufo della Nebbia (Mist Owl): Chrome acquires it in her battle with Glo Xinia as it is inhabited by Mukuro, which changed it from a Rain Box Weapon to a Mist Box Weapon.
- Vongola Mist Owl: This is Chrome's Vongola Box Weapon. It appears to look much like her Mist Owl but with armour padding on its wings. In Cambio Forma, the owl turns into Daemon Spade's Devil Lens. These Lens allow Chrome to see through any Illusion.
- Vongola Box Ring (Mukuro): At the end of the Future Arc after Byakuran was defeated, the Vongola were told that they can't take the Vongola Boxes with them. But with Verde's help, the Vongola Boxes were turned into Rings and were brought back to the present with the Vongola.
- Earring of the Mist Version X: It’s the upgraded version of the Mist Original Vongola Ring. Chrome gained it in the Ore form, but when Mukuro possessed her, he activated it and gave this shape to fight with Daemon Spade. After Mukuro was freed, she no longer owns it as the earrings were given to Mukuro.
Appearance in other Media
She appears in the second volume of the Reborn! novel "Hidden Bullet: 2X-Fiamma," which explains how she first met Ken and Chikusa. She also appears as a main character in the Drama CD 'Chrome Saw it! Happy Day at Kokuyo Land', in which she meets Lambo, who sees her learning Italian and tries to teach her. Then, she meets Tsuna and after some events, Lambo spills the bucket of water that Chrome had brought from the bathhouse for Ken onto her. Tsuna offers to let her go to her house to dry her wet Kokuyo uniform and change into dry clothes. While she is changing, Ken and Chikusa suddenly arrive at Tsuna's house and much to Tsuna's protests, Ken keeps banging on the door of the room Chrome is in and tells her to come out. When Ken actually says 'the pineapple head inside', Chrome switches with Mukuro and the latter uses his First Realm on Ken. At the end of the day, Chrome heads back with Ken and Chikusa but not before Tsuna asks why Chrome is with those two. She states that it is because Mukuro told her to and because they were her first comrades that she trusted.
- Chrome's Fandom Shorthand is 96, the opposite of Mukuro's 69.
- Chrome's monthly allowance is 500 yen; however, for bathing, Ken pays for her.
- The Japanese rōmaji of her name, Kurōmu Dokuro, is an anagram of Mukuro Rokudō.
- Her favorite foods are wheat, chocolate, and malt sugar. She dislikes eating oily food and pineapples. Ironically, she has the same "pineapple" hairstyle like Mukuro. Also, in Everyone's One Day Activities, during their party, Mukuro ordered her to wear a pineapple costume, with her hair as the spikes.
- Her favorite animal is cat.
- Her real name, Nagi, means calm.
- In the 2007 and 2008 popularity poll for "the character I want as a bride," Chrome ranked tenth and seventh respectively.
- She spoke Italian twice in the manga, first when she introduced herself on her first appearance, and then when she invaded Merone Base before saving Gokudera. However, these were replaced with Japanese in anime.
- According to the fanbook and light novel, her mother is a famous star and her step-father is the assistant manager in a famous overseas company.
- Her main goal is to one day converse with Mukuro in Italian.
- In the most recent popularity poll, she ranked 11th. In three previous polls, Chrome ranked 10th and 13th and ranked 1st in the female popularity poll, making her the most popular female character in the series.
- In the anime, she first met Ken and Chikusa at Kokuyo Land when Mukuro promised her that they would meet them.
- In the second volume of Hidden Bullet Novel: mono.CHROME, it's revealed that Chrome has a habit to give someone a blank stare if she feels the person (particularly Ken) is having a fit.
- In the anime Chrome is not very good at cooking, but in the novel series she's an excellent cook.
- According to Fuuta's ranking data book in volume 36, Chrome ranked 1st as "the most wanted mafia member."
- In Hidden Bullet volume 2 post script, Koyasu Hideaki stated that Chrome is his favourite character in Katekyo Hitman Reborn! Flame Rumble video game.
- Together with Mukuro, Chrome is one of the only three characters to have a story mode in Katekyo Hitman Reborn! Kindan no Yami no Delta video game, the other two being Tsuna and Xanxus.
- She participates in extra chapter "What if Reborn!" as a hairdresser. However, the hair salon she is working at only has pineapple hairstyle cut.
- According to Reborn! ēlDLIVE Character's 365, she likes the times whenever she feels Mukuro's presence, wheat chocolate, and public bath. She dislikes when Ken being mean to her and the dryness of winter.