Tsuna is a hapless youth with low test scores and lower self esteem. His mother hires a tutor to help Tsuna out, but it comes as a surprise to the both of them when the tutor is a baby named Reborn, claiming to be from the Mafia. Reborn informs Tsuna that he's the next heir to the Vongola family mafia family and tries to help Tsuna reach the goal. Reborn possesses the Dying Will bullet, which kills a person and brings them back to life to fulfill the last regret they had, and even works to get Tsuna some henchmen to make him a true mafia boss-in-training.

Picture	Name	Description
	Tsunayoshi	"Tsuna" Sawada- Tsuna is a junior-high student and the Vongola Family's mob-boss-in-training. The reason Tsuna was recruited is because he is the great-great-great grandson of the first Vongola boss, who had moved to Japan a long time ago. Also, the other candidates, for the position of the head of the Vongola Family, died. Before Reborn finds Tsuna, Tsuna is known as "No Good Tsuna" for his poor grades, bad luck, and lack of athleticism. When Reborn shoots him with the Dying Will Bullet, he is revived as a powerful mostly-naked warrior with a flame on his forehead.
	Reborn	The infant hitman who drags Tsuna into becoming a mob boss and becomes his home tutor. The current head of the Vongola family sent Reborn to train Tsuna. He is Vongola IX's most trusted hitman. Despite being a mere one year old infant, he behaves as a seasoned mafioso. Reborn often says "Ciao-su" (a mix of the Italian "ciao" and the Japanese "osu", which is a casual male greeting equivalent to the English "Yo!" or "Wassup!")
	Hayato Gokudera	A transfer student that was placed in Tsuna's class. Hayato, who had previously studied in Italy, is a dynamite expert nicknamed "Smokin' Bomb Hayato". He keeps various explosives hidden on his person and uses those explosives liberally by lighting them with a cigarette (or several) held in his mouth. At one point, when he removed his jacket to do 'dynamite maintenance', he was revealed to be carrying several dozen dynamites, much to everyone's surprise.
	Takeshi Yamamoto	Takeshi, a seventh-grader, is the popular baseball star of Tsuna's school. He becomes friends with Tsuna, and Reborn tries to recruit him into the Vongola Famiglia. He hardly takes anything seriously, and is often "tricked" by Reborn because he thinks that "It's a game". Reborn occasionally trains him by putting him in dangerous situations, but Takeshi still believes it to be just a game or simple baseball training. His reflexes are unreasonably good, as is his level of obliviousness; he thinks the various weapons and dangerous objects he sees Reborn and others use on a regular basis are just really advanced kid's toys.
	Ryohei Sasagawa	Kyoko's older brother who is obsessed with boxing; he even barged into a zoo, expecting to fight some animals. He is the third to take the Dying Will Shot, but it has no effect on him since he always lives "to the limit," and is therefore in Dying Will Mode constantly. He wants to recruit Tsuna to the boxing club and in response, Reborn wants to recruit him into the family. Every time he sees Tsuna and his family doing something strange, he gets fired up and always wants to be a part of it.
	Kyoya Hibari	Kyoya is the leader of the Discipline Committee, or Prefects, who all happen to be a group of delinquents loyal to Kyoya. Even so, he is a violent delinquent who uses his status to harass other students. He prefers to be alone and cares little for his subordinates. If he is amongst a crowd, he tends to play violent "games" with rules like "I'll kill anyone who wakes me up when I'm sleeping," and as mentioned, the loser often has to pay the price with his life.