A 7-year-old rental apartment building located just 7 minutes on foot from the station, close to the city center and equipped with furniture and appliances, making it convenient for daily living. A male employee working at the company managing this popular property possesses a tightly guarded master key. Among his daily interactions with estimated 20- to 25-year-old women dressed as office ladies, twisted desires begin to stir deep within his consciousness. Friends excitedly plan an overseas trip together, playfully teasing each other in a dressing room while trying on swimsuits. Back home, the office ladies kindly prepare tea for their returning friend. Unaware of the danger, they are quietly invaded in their room by the man, rendered unconscious, and sequentially raped.