Working as a janitor at a prestigious hotel, Yuuya is forced to obey the haughty receptionist, Yuka, who outranks him. One night, while inspecting the storage room with Yuka, a power outage traps them inside as the electronic locks engage. With no way to call for help, time drags on. Yuka's complexion gradually changes, and when Yuuya checks on her, he finds the usually arrogant Yuka with tears in her eyes and wetting herself. Shocked yet aroused, Yuuya decides to take advantage of the situation and violate Yuka within the confined space...