Datenshi Gakuen Debipara

A school full of students becomes host to devils after a mysterious force summons evil presences onto the campus. Kotori, Yuuto, and Rin are among those caught up in the sudden invasion. Most students make deals with the devils in exchange for wishes such as becoming more attractive or having longer legs. Yuuto resists the devil possessing a fellow student, while Rin overcomes the weak presence possessing her. Yuuto then makes a pact with a devil in an attempt to return the school to normal, but the students remain under demonic control.