A 7-year-old apartment building, just a 7-minute walk from the station, located near the city center with excellent living conditions and fully furnished. A man working at the company managing this popular property obtains a hidden master key and begins maliciously intruding into the female tenants' rooms. A 26-year-old office lady returns home, sighing at an unexpected emergency call, yet calmly assessing the situation and issuing instructions. After reporting to her boss, the exhausted OL forces herself to muster energy and prepares to head back to work. Along the way, she drinks drugged water and loses consciousness, leading to a scenario where her fair-skinned, voluptuous body is toyed with and violated.