A girl named Kimika (Sakurano) wakes up chained up in a dark boiler room, unsure of how she got there. She soon approached by a strange large man wearing a mask and using a creepy voice changer. The girl is the daughter of Daisuke (Kenji Ezure), the shrewd president of a general contracting company. Daisuke was too occupied with an ongoing sexual fling with his secretary (Asami) to notice that his daughter was missing at first, and his relationship with her was already strained due to a certain ...