Chizuru has a series of strange experiences at school, in town, and at Dr. Komori's mansion on Delusion Hill. The school nurse, Akato-sensei, has a lover: Shizuman the skeletal specimen. One day, Chizuru peeks at Akato-sensei kissing Shizuma. At the same time, an increasing number of students at school are developing large swellings on their backs, necks, and thighs. Akato-sensei skillfully removes the swellings with a scalpel, but... feel the horror in Senno Knife's occult world of bizarro!!

Serialized in the shoujo horror magazine Suspiria in the 2000s. All the chapters, even the nost inappropriate ones are shoujo. FANSERVICE DOES NOT MAKE THIS A SHOUNEN MANGA!!