In a small town with a big red bridge, a run-down apartment, which everyone calls a haunted house, stands still. A few days before the summer break begins, two high school girls, Kaede and Azusa, find a boy living in the abandoned place by himself. Naming him "Mon", they take care of him without being noticed by anyone.

Kid Mon: Real Name Unknown

A high-school girl who lives in a rural town in Japan struggles to define her own way in life. To help her impoverished family she works as a video fetish performer which leads to problems for her and her family with a criminal underworld.