With the start of a boarding school life, and as a freshman student, he unluckily fell into a situation of having no living quarters to stay in. Accidentally stumbling across the legendary 'haunted house', and furthermore inadvertently releasing a forbidden seal–

"Human! You actually dared to trespass…"

"I'm really sorry! Are you this house's owner? Can I pay the lodging fee?"

"……Haven't you realized the difference of us from normal humans?"

"Uh, you all look exceptionally handsome?" (゚∀゚)ノ

"……╬"

For a (beep–) goal, the demons decided to pretend to be students and sneak into the school. Due to a (beep–) reason, the boy is forced to live in the residence for a certain amount of time. The demons who did not know the affairs of life met a zealous and simple boy, accepted the overly chaotic affairs of the school + living together, which is where the story ardently begins!