The depravity at Seikain Academy escalates in Sei Dorei Gakuen 2 as the protagonist, a previously unassuming student, gains absolute control through a sinister hypnotic smartphone app. The entire female student body and faculty become his personal harem of fuck-slaves. The series follows his systematic corruption of the school, starting with the student council president and the school's top idol, forcing them into increasingly humiliating and public sexual acts. He makes them perform oral sex in the hallways, engages in brutal group orgies in the classroom after hours, and films their degradation to ensure their complete submission. Each episode showcases a new target, from the prim class representative to the stern female teachers, breaking them down mentally and physically until their only purpose is to service his cock. The climax sees the entire school transformed into a non-stop orgy, where the girls are used as mindless sex toys, their bodies available for his every whim, from intense anal fucking to being used as public cum dumps.