One night. Suddenly you receive an incoming call from your classmate [Inunaki Rei].
"I'm trapped in a room I don't know ... Help me ...!"

Rei was confined in an abandoned building.
Only you and another friend [Yuhi Shiohama] can count on you.
Is it possible to rescue Rei from the magical hands of [Yoru Sato] who roams the building?

[Translated from NovelGame]