J is a professional hitman... he was orphaned and raised by the yakuza as an assassin. He was too good, killed too many people, and knew too much about their organization. When the syndicate tried to erase him, their plan backfired...when three syndicates were wiped out completely, J became "untouchable."

Megumi, a girl in third grade, was bullied by her classmates because she is half-Japanese, half-American, and gets good grades.

One day, when they bumped their heads... they switched bodies. Now J is inside a cute girl's body...and Megumi is inside the tough guy's body.

Now they must hide that they are not who they were and keep their everyday lives the same as before. J never knew how hard a girl's life is, and Megumi enjoys her new life?!

(Source: BookWalker, edited)