Drifting School

The Drifting Classroom (漂流教室 , Hyōryū Kyōshitsu ) is a Japanese horror manga series written and illustrated by Kazuo Umezu. It was serialized in the manga magazine Weekly Shōnen Sunday from 1972 to 1974, and published as collected tankōbon volumes by Shogakukan. The series follows a school that is mysteriously transported through time to a post-apocalyptic future. The series was critically acclaimed, and won a Shogakukan Manga Award in 1974.[2]

In 1987, The Drifting Classroom was adapted into a live-action film directed by Nobuhiko Obayashi. The Long Love Letter, a Japanese television drama loosely based on The Drifting Classroom, was released in 2002.[3]

In 2021, the original anime Sonny Boy (TV series) was released. In an interview with Bilibili, director Shingo Natsume has cited The Drifting Classroom as an influence for his coming-of-age story.