Makoto Kimura

Shuichi Nitori transfers to a new elementary school, and there, meets Yoshino Takatsuki. The two children discover they share a similar secret.

Rônin Akitsu Masanosuke is a skilled swordsman, but his personality often causes him to be let go from his job. One day he encounters Yaichi, the leader of a group calling itself "Five Leaves" and takes a job from him as a bodyguard. Though he is worried about their intentions, he feels there is something more to the group and agrees to work with them.