D Alfin

Title Delfino di Pioggia
Name Alfin
Designer Lorenzini
Animal Dolphin
Users Basil
  • Telepathy
  • Flight
Power B
Intelligence SS
Speed B
Stamina B
Size 2 - 4m
Personality Gentle
  • Dolphin Edge
  • Dolphin Pulse
Manga Debut Chapter 234
Anime Debut Episode 162

Alfin is a Rain-attribute Box Weapon with its whole body clad in Rain Flames. Its design is unique even among the Box Weapons left by Lorenzini and is considered a prototype Box Weapon furnished with an advanced communication system. Basil acquired it along with his Ring and the Book of Sukedachi in Spain after being sent ten years in the Future. The box itself has a metallic green look to it and has a black strip running along the side. The Box also has CEDEF engraved on the side, representing the Vongola External Advisory organization that Basil belongs to.


The intelligence of the Rain Dolphin is high and it is capable of achieving mutual understanding with most Animal Box Weapons.
Dolphin Edge

Dolphin Edge

  • Dolphin Edge: Rain Flames are gathered on Alfin's fins and are then shot forward like edged projectile Weapons. Since these Weapons are infused with Rain Flames, they can act like tranquilizers by soothing the enemy.
  • Telepathy: Alfin can respond to telepathic commands from Basil.
  • Brain Coating (Inter-Box Combination Launch System): Due to the high intelligence level of the Delfino di Pioggia, Alfin has the Ability to interconnect with other Box Animals, including the Vongola Box Weapons. This synchronization allows the Animals to launch a synchronized and secret attack.
    Solarstorm Fang

    Solarstorm Fang

  • Super Nova Ocean: This attack, combining Alfin's power along with the other Boxes, was used to crack the barrier shutting off Tsuna and Byakuran's fight, letting Gamma slip through.
  • Solarstorm Fang: An attack combinining Alfin's Flame with Kangaryuu's and Uri's. Kangaryuu shoots Uri with a Sun Bullet that increases its size and strength instantly, while Alfin combines its Rain Flame with Uri's Storm Flame. This results in a deadly Flame combination.


  • Alfin's Box is marked "CEDEF," the organization that Basil belongs to.
  • Alfin and Basil fought the Millefiore forces approximately 8 times in the 10 days that it took Basil to reach the Namimori HQ. These battles all took place before they were introduced in the Future Arc.
  • Alfin's brain is shown to be coated with Rain Flames.


Box Weapons
Sky Box Weapons: NatsuNatsu (Version X)Bester (Sky Lion Mode)Bester (Sky/Storm Liger Mode)Bester (Platinum Armor Sky/Storm Liger Mode)ScuderiaScuderia (Sky Pegasus Mode)White DragonBlack DragonsSky Turtle
Storm Box Weapons: UriUri (Leopard Mode)Uri (Version Vongola Box)Uri (Version X)MinkStorm Box of CarnageStorm ScorpionsStorm MoleStorm SerpentStorm Stag BeetleStorm BatsStorm HyenaSistema C.A.I.Flame ArrowDark ScytheSpikesDark SlicerFlying CarpetThrone
Rain Box Weapons: JirouKojirouKojirou (Version Vongola Box)Jirou (Version X)Kojirou (Version X)AloAlfinRain Box of CarnageRain OwlRain Giant SquidRain PelicanHeavy Rain ElephantVampire BatRiding CropWater
Sun Box Weapons: KangaryuuKangaryuu (Version Vongola Box)Kangaryuu (Version X)Sun RhinoSun Box of CarnageKuuSun SpidersSereno GlovesSun TrowelMelone Base‎‎RopeOctopus Head
Lightning Box Weapons: GyuudonGyuudon (Version X)Colulu & WidgetColulu & Widget (Black Foxes Form)LivyaElectric Wild BoarElectric HornetElectric FireflyElectro MantisLightning BirdElettro BilliardTurbine Shoulder ArmorElectro LanceLightning SquidLightning Starfish
Mist Box Weapons: Mukuro (Mist Owl)Mukuro (Vongola Mist Owl)Mukuro (Version X)Spectral Sea SlugsFlan's Box WeaponMist Box of CarnageMist Sea SnakesMist StarfishNuvola GauntletIllusion SwordSuit of ArmorParachute & Balloon
Cloud Box Weapons: RollRoll (Version Vongola Box)Roll (Version X)ZamzaCloud Box of CarnageNuvola VelociraptorDemon BearCloud MothBellflowersCloud TonfaCloud WhipViolet Tornado

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