Choujin Gakuen: Konton Mouryou Seishun Jihen
超人学園 〜混沌魍魎青春事変〜
In a remote location, a demon girl resides in a mansion. During a severe storm, a mysterious boy named Adam seeks shelter there. The two encounter each other. The demon girl and Adam, both considered outsiders in the human world, choose to establish a school for monsters together.