"Ryou Seibai! Gakuen Bishoujo Seisai Hiroku" is a hentai series based on an erotic game by Tinker Bell, set in Kibitsu Private School, an elite institution for rich teenagers. The story follows Kyouichiro Hinase as he uncovers dark secrets and abuses within the school after his older stepsister, Saki, who works there as a teacher, is assaulted. Together with an investigator, Kyouichiro seeks justice by punishing those responsible among the student council, exposing a sinister cycle of exploitation and power abuse.