Synopsis

He failed to prove his identity as the Vongola Family's tenth boss and was instead transported to the island’s rear, given a second chance at proving himself. There, he encountered Colonello, another Arcobaleno. Under the rigorous tutelage of Colonello and Reborn, Tsuna endured intense training. Simultaneously, however, a rival Arcobaleno launched an invasion of the island, bringing with them a formidable army.