On the first day of school, Kaya, the family cat, stows away in Keiichirou’s backpack and is not discovered until after Satsuki and Keiichirou arrive at the school. Kaya runs away to the old school house, which prompts the two to follow. Once there, they are warned that the school is haunted. All of the kids run into ghosts, and while running away from Amanojaku, Satusuki discovers her mother's adventures in how she defeated various ghosts.   …