Plot/Summary Given the permission, Rei Sakura a Hitogoroshi (a japanese ninja that kills evil spirit) must find and kill a demon possessor who travels in the future to spread chaos. And as her own mission, to find the one who killed her mother 9 years ago that she believes one of the minions of that possessor. She will meet Shin Takano, a boy from the future who will be her guide in living