YoumuinThe Nightmaretaker Akuma ni Tsukareta Otoko / 妖夢員:The Nightmaretaker ～悪魔に憑かれた男～ v.1.7.1

Dream Rape Simulator. The developer claims that the playthrough takes over 28 hours and has over 100 variations of events with the girls.
The main plot runs slowly, but is definitely worth completing.
Due to a certain event, GG suddenly changes his job and becomes an auxiliary worker at a school.
He used to be a good person, but one day during recess, he noticed a schoolgirl sleeping in the classroom and turned into a sex offender. The reason for this behavior is demonic possession. Ever since he became possessed by the demon, he has been driven by an abnormal sexual desire to ejaculate on schoolgirls.
As the story progresses, we will communicate with demons and make a pact with them for special abilities to help us fulfill our needs. Reach the end and fulfill your deepest desire!