Haruma Kawagoe is an only child. A long time ago, at Christmas time, his mother miscarried the child that was to have been his baby sister. ...

The story begins when high school student Kazuki Muto is killed one night saving a mysterious girl from a monster, only to wake up in his sc...

The story begins when high school student Kazuki Muto is killed one night saving a mysterious girl from a monster, only to wake up in his sc...

When 11-year-old Wataru's father leaves home and his mother is taken ill to the hospital, he decides to change his fate by traveling through...