Chizuru Kitan

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 secret: he loves Shizuma, a 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!!