After cutting ties with her Mother Rika didn't know how she would be able to find a place to stay on her own. She never dreamed of finding anything like the new studio apartment she has, close to the train station; even better it costs her nothing in rent. For a young woman on her own, such an arrangement could only mean one thing, though, and she keeps her rent-free life through making her place into a sex den with the help of her older landlord. Sometimes the other tenants even come calling. Tonight, a few decide to visit all at once. Just another day for Rika and her new life.