Reborn! is about a boy, Tsunayoshi “Tsuna” Sawada, who is chosen to become a Mafia Boss. Tsuna unwillingly undergoes training from Reborn, a hitman from Italy. Timoteo a.k.a. “Vongola IX,” the head of the Vongola Family, sent Reborn to train Tsuna; the first Vongola boss moved to Japan, and Tsuna was his great-great-great grandson; the other candidates for the position of the head of the Vongola family died. Enrico, who was the leading candidate to become “Vongola X”, died in a gun battle. Massimo, the second, “sleeps with the fishes.” Federico, the favored son, was found as a pile of bones. For these reasons, Tsuna is the only remaining heir.