Gakkou no Kaidan

After moving to her late mother's hometown, Satsuki Miyanoshita and her younger brother enter an abandoned school building and discover that its ghost stories are real. An attempt to seal one spirit leaves Amanojaku trapped inside their pet cat.

The diary their mother left behind explains how to confront the other apparitions awakening around town. With new friends and a reluctant supernatural adviser, Satsuki must uncover each haunting's rules before another familiar place becomes dangerous, while learning why her mother knew these spirits so well.