Tomonari no Fune

Mikura Tagane is an unsuccessful sex worker who lives alone. When she went out onto her veranda after work, she accidentally spotted a man and a woman having sex in the apartment opposite hers. Her eyes met with the man's and wanting to avoid trouble, Tagane goes back inside and closes her curtains. Moments later, her doorbell rings. Though having a bad feeling, she answers the door and it was that man she spotted. He then forcefully enters her apartment and rapes her. On top of that, the man goes through her fridge and sleeps in her bed- essentially, doing whatever he wants.

Fearing that her parents would contact her, Tagane doesn't report him to the police. Given that she was also tired from work, she falls right asleep.

That day marked the beginning of Tagane and that man's strange relationship...