Home Tutor Dino is a Katekyo Hitman Reborn! Drama CD. The story features Dino's struggle in training his newly appointed student, Kyōya Hibari.
Synopsis
Dino just finished his training with Hibari for the day, exhausted as he found it difficult to hold back against Tsuna's Cloud Guardian who always fights him with full power. As Hibari returns to his Disciplinary Committee duty, he tells Dino to pay the whole damage at school that was caused by their training. Dino protests by the demand, pointing out that Hibari himself has destroyed several parts of the school from his rampage, only to be told by Romario that Hibari already left.
Seeing Dino at the moment, Romario reminiscences the old days when he and the other Cavallone family members were worried sick for Dino who was still immature and spineless. Romario admits that back then part of them wished for Dino to live a normal life out of concern for his safety, yet at the same time they were also thinking Dino is the only one who can become their boss.
Meanwhile, Tsuna can't concentrate on his training with Reborn and Basil because he is worried for Dino who has Hibari as his student, reminding Reborn how Hibari is not the type who would listen to anyone. Reborn dismisses Tsuna's concern as unnecessary and that he should focus on his own training. Basil is surprised by how Dino is willing to help Tsuna. He explains that even though Cavallone Family is an ally to Vongola, the conflict between successors should be settled only amongst the Vongola. Dino, however, brazenly declared that he is Tsuna's ally, which is a dangerous move as this means should Tsuna lost and Xanxus succeed the Vongola, then Cavallone would become an enemy to Vongola. The news worries Tsuna even further. Reborn tells Tsuna to prevent that from happening, he must focus on his training and they resume before Tsuna even ready.
As the Ring Battle begins, Dino leads Hibari to different locations to fight, now fighting in a forest. This is done because Namimori Middle School is used as the battlefield for the matches and Hibari would've been enraged if he knew how much the school has been changed. Dino calls for a brief rest, to which Hibari relents. Hibari then realises that Dino purposely leads them away from school, worrying Dino who fears that Hibari realises what happened to his school. Fortunately, Hibari mistakes Dino's intent luring him away from school is so that he won't need to pay for the damage like before. Hibari questions why Dino is so insistent in teaching him. Dino explains that he wishes to help Tsuna in any way he can. Since he can't interfere directly, teaching Hibari to become Tsuna's Guardian is the only thing that he could think of to help. Hibari is unable to understand Dino's answer since unlike the Bucking Horse, Hibari always do as he pleases and only fight for himself. Dino laughs at Hibari's answer, commenting how it's very like him. While understanding Hobart's opinion, Dino is determined to teach Hibari there's a meaning in fighting to protect someone.