Reborn!, Volume 14 — Akira Amano

Tsuna is just a scaredy-cat junior high student who's no good at school or sports...until Reborn shoots him in the head and he starts life fresh with the power to solve his problems!
Junior high student Tsuna is a failure at school, sports, and social life. He needs a mafia hit man mentor like he needs a hole in the head...and he's about to get both!
Reborn's gun will kill you and make you stronger! R to L (Japanese Style). The Sky Battle Tsuna's old adversary, Mukuro Rokudo, has successfully fought on the side of Tsuna's "family" for possession of the Mist Ring. But his opponent, the Varia known as Mammon, has a highly developed sense of never-say-die! Later, Tsuna finally completes his training and returns in time to confront one of the Varia who is running amok. The whole game changes, however, when he finds out who this Varia really is! Junior high student Tsuna is a failure at school, sports and social life. He needs a Mafia hit man tutor like he needs a hole in the head...and he's about to get both!