The Drifting Classroom

The Drifting Classroom (漂流教室, Hyōryū Kyōshitsu) is a Japanese horror manga series written and illustrated by Kazuo Umezu.

Yu, a three-year-old boy who was caught in the tremor, shows Sho a memorial buried in the dust commemorating the disappearance of their school.

Nishi, a telepathic student who is able to communicate with individuals in the past, is able to contact Emiko, who prepares objects in her own time to assist the children in their future.

The stranded children face many threats in their fight for survival, including hostile megafauna, a deadly plague, food and water shortages, delinquents who sow dissension, and creeping madness, as well as sadistic schemings by Sekiya, whose mental faculties gradually deteriorate.

Eventually, the remaining semi-feral children come back to their senses after Otomo, a high-achieving student who is jealous of Sho, admits that he had planted dynamite in the school the night before the tremor, which had probably caused their temporal displacement, and apologizes for his behavior.