Daily Life & Kokuyo Arc

A strange infant, Reborn, claiming to be a hitman for the Mafia approaches Tsunayoshi "Tsuna" Sawada. To Tsuna's dismay, he has just been chosen to become the next Vongola boss.

Since Reborn's arrival, Tsuna begins to meet new and strange people. One of those people is Hayato Gokudera, a Mafia member who wants to kill Tsuna in order to become the Vongola boss. Meanwhile, Tsuna is forced to help the volleyball team, including his friend Takeshi Yamamoto, due to his show of strength in the previous episode.

Bianchi is an assassin who believes that love conquers all. So, in order for her love to reach Reborn, she attempts to kill Tsuna to free Reborn's schedule. Meanwhile, a young assassin named Lambo comes after Reborn.

A strange girl, Haru, is seen stalking Tsuna. In fact, Haru is actually trying to follow Reborn. In order to "free" Reborn, she tries to drive away Tsuna by force.

Just when Tsuna is adjusting to his new life, his school's delinquent leader, Kyoya Hibari, is now targeting Tsuna. Fortunately for Tsuna, Hibari is more interested in fighting Reborn.

A strange Chinese infant, I-pin, comes to Japan in order to kill Tsuna.

Tsuna finally meets Kyoko's older brother, Ryohei, but things don't seem to go the way he wanted when Ryohei nags Tsuna to join the boxing club.

Reborn's former student comes to Japan to visit Tsuna; Dino teaches Tsuna what it means to be a Mafia leader.

Tsuna is suddenly stricken with an embarrassing disease. Unfortunately for Tsuna, the only person who can cure it is a doctor who does not like to treat men.

Lambo is given a simple task of giving Tsuna his lunch by Tsuna's mother, but when he bumps into I-pin, who was carrying a box of nitroglycerin, a mix up causes things turn for the worse.