At Mafia Island, Tsuna fails to prove his identity as the Vongola Family's 10th boss, and is transported to the back of the island where he is given a new chance to prove himself. There, he meets another Arcobaleno, Colonello. Colonello and Reborn put Tsuna through tough training. Meanwhile, another Arcobaleno invades the island with an army.
| Creator | N/A |
|---|---|
| Actor | Yukari Kokubun, NEEKO, Takashi Kondo |
| Country | Japan |
| Production | Artland |