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The Varia is an elite independent assassination squad under the Vongola Famiglia. They are genius assassins who work in the deepest recesses of the Mafia. Each member takes on missions that are said to be impossible to accomplish by humans; however, they do not accept a mission unless the chance of success is 90% or higher. Those that see them work often say that their high-level assassination skills are demonic.
Despite lacking loyalty and respect for other members, they are extremely loyal to their leader, Xanxus. As professional killers, they obey only him. The Varia also appears to have more than fifty subordinates ranged under the command of the main members. The Varia are based in Italy and apparently reclusive, only showing themselves after Iemitsu Sawada disappeared.
- Xanxus - the current leader of the Varia and a former Vongola Decimo candidate.
- Superbi Squalo - the second-in-command of the Varia. He is shown to have killed Tyr, the former Sword Emperor and Varia leader. He is also a former Vongola Rain Guardian candidate.
- Lussuria - an eccentric Muay Thai figher and former Vongola Sun Guardian candidate.
- Leviathan - an extremely loyal subordinate to Xanxus and former Vongola Lightning Guardian candidate.
- Belphegor - known as "Prince the Ripper" and former Vongola Storm Guardian candidate.
- Mammon - also known as "Esper Mammon", he is Varia's best spell-caster and the holder of the Mist Arcobaleno Pacifier.
- Gola Mosca - a killing machine sold to the Varia by the Italian Underground Economy. Though not officially a member, Xanxus named it a Vongola Cloud Guardian candidate.
- Flan - the newest officer member of the Varia in the Future who uses the 666 Hell Ring. He is Mammon's replacement as the group's Illusionist and is thus forced to wear a large frog hat to symbolize this.
- Tyr - the previous Sword Emperor and Varia’s Leader before Xanxus.
- Ottavio - the treacherous former vice-captain of Varia that staged a coup d'état against Xanxus.
- Morette - Varia member that worked as a grunt and was secretly loyal to Ottabio.
Other remaining known members of the Varia include a 50-member reinforcement squad whose power is second only to the executive staff (seen only during the Varia Arc), the Varia Lightning Strike Squad, Totem Ross, and numerous grunts. In the future, the Varia seem to have downsized, seeing as the Varia party that raided Millefiore headquarters is said to consist of 32 members.
Varia has a headquarters in which the core members live. Known facilities in it are their respective bedrooms and bathrooms, their dining and meeting rooms, and Xanxus's office.
- Each of their names (Latin names) matches one of the Seven Deadly Sins or the respective demons of the sins, excluding Flan:
- On the Varia flag, under their symbol, there is a text saying: Squadra killer autonoma di Vongola IX, which means: "Autonomous Assassination Team of Vongola IX."
- So far, no female Varia members have been shown. However, Mammon's gender is unknown.
- Doctor Shamal was originally asked to join Varia many years ago in the past; however, he declined the offer.
- In an episode of Mr. Rebokku no Ciao Ciao Interview, it is revealed that the Varia celebrates New Year’s in Japan; however, this is later revealed to just be randomly made up by Reborn.
- In the manga extras, it's stated that there are many variations of the Varia uniform. This could be the origin of their name.
- Varia is Latin for Vicovaro, a commune in Italy. Also, the word varia means "varies" in Italian and Portuguese, and "various" in Latin.
- The Varia are said to kill any member who fails, in order to eliminate weakness. However, it seems that they are injured rather than killed, since Lussuria, Squalo and Viper have failed on occasion and all three are still alive.
- In recent Reborn! Famiglia polls, Varia ranked 3rd.
- To join the Varia, you have to speak a minimum of seven languages.
- They have yet to replace Gola Mosca and this remains unchanged in the future, so they lack a Cloud Guardian.
- M.M. claims that the Varia have a "paltry" salary and that the Kokuyo Junior High Gang are more highly paid. Whether this is true remains unknown.
- The Varia have their own private jet (seen during The Curse of the Rainbow Arc).
- As stated by Flan in the future, the Varia are open to suggestions for their victims' manner of death.