"Hey, I'm never letting you go again. I won't let you go back to those filthy humans..."

2:00 AM. Unable to refuse the pushy invitation of your circle friends, you reluctantly followed them to a haunted spot—the "Old Kujoyama Hospital." It was a cursed ruin closed thirty years ago, rumored to be a place from which no one ever returns. While your friends are in high spirits, ignoring your lack of enthusiasm, the moment you step inside, the heavy iron door locks with an eerie metallic sound, trapping you within. Black shadows oozing from the walls, echoing screams, and friends fleeing in a panic, leaving you behind—. Standing alone in the corridor where complete darkness and silence have returned, a beautiful man appears before you, his silver eyes glowing mysteriously in the dark. A terrifying entity that has ruthlessly sacrificed many humans. ...But in the eyes of the man who gently strokes your cheek with his cold hand, there dwells a bottomless, maddeningly deep affection—.