Reborn! Vol. 3, Shonen Jump Advanced Manga Edition

Tsuna a timid junior high student is a failure at school sports and social life. But everything changes for Tsuna when Reborn a fedora-wearing gun-toting toddler who claims to be an Italian hit man shows up at his house. Reborn was sent to Japan to groom Tsuna for his future life as a big mafia boss! Reborns gun has quite an unusual effect: When Reborn shoots people in the head they die but are then "reborn" with temporary supernatural powers that allow them to fulfill their dying wish. Reborn and Tsuna make an unlikely pair but every day theyre together Tsuna gets reborn into a new (and better) guy!