After his workplace is absorbed by a famous hotel, cleaner Yuzuru cannot refuse the orders of Yuka, a high-ranking receptionist with an overbearing attitude. During a nighttime inspection, a blackout triggers the electronic lock and traps them in a storeroom without phones. As the hours pass, proud Yuka begins crying and wets herself. Aroused by her humiliation, Yuzuru decides to rape her in the sealed room.