- Country: Japan
- Genres: N/A
- Release: 1987-01-01
- Director: Satoru Kobayashi
- Writers: Satoru Kobayashi
- Language: Japanese
- Stars: Natsuko Mai , Maki Hidari , Yura Enjôji , Kiriko Saegusa , Shôzô Sakairi , Reika Kazami , Kiichirô Mutô , Naohiko Mori , Momoko Yakushimaru
- Runtime: 61 min
- Awards: N/A
- AKA: The onanii: Seiri kyôshitsu , Za onanie: Seiri kyôshitsu (Japan) , 課外授業 みだらな性春 (Japan) , ザ・ONANIE 性理教室 (Japan)
- Plot: N/A
- IMDB:tt10354940
The onanii: Seiri kyôshitsu Cast
Satoru Kobayashi
Director
Natsuko Mai
Maki Hidari
Yura Enjôji
Kiriko Saegusa
Shôzô Sakairi
Reika Kazami
Kiichirô Mutô
Naohiko Mori
Momoko Yakushimaru