Top 13 in Top 15 best Shounen anime you should not miss.
Katekyo Hitman REBORN! - Trailer
Reborn! tells the story of a boy named Tsunayoshi "Tsuna" Sawada, who was chosen to become the head of the Vongola clan (an Italian family), because he was the great-grandson of the family's first owner. Vongola.
Tsuna was told by Reborn that he would become the head of the tenth Vongola clan. Therefore, Timoteo aka "Vongola IX", the current head of the clan, sent a young assassin named Reborn from Italy to train and train Tsuna to prepare for his new mission.