The protagonist is a resident of devil's world and wanted to became a teacher.

He finally managed to became a teacher and started teaching at Alfred Academy while living inside its night duty room. However, various mysterious cases started appearing one-by-one inside the academy, and he couldn't get a peaceful sleep. The source of this is that the academy is unnaturally overflowing with magic power. He called his subordinates from the devil's world and ordered them to recover the overflowing magic power. He feels the need to defend his position as a teacher.

Will he be able to resolve the mysterious cases while still remaining as a teacher?

[Translated from Getchu]

Simulation game from Softhouse Chara.
Defend the academy at night, scare and exorcise the evil spirits that's possessing your students.