Shin Megami Tensei: If... - Gakuen no Akuma Tsukai

Based on the video game "Shin Megami Tensei: if..." for the Super Famicon (later ported to the Sony PlayStation).

"Shin Megami Tensei: if..." is about Karukozaka High School which, along with the students and staff, is magically transported to the realm of Makai: the demon world.