Just finished a part of the thesis, Hatori and her boyfriend decided to have sex as a reward for their hard work over the past few days. Ironically, just as they were getting into it, Hatori suddenly felt the urge to use the bathroom. As she left the room, her older sister Eimi, who had a habit of walking around the house naked, walked in, catching both of them unintentionally seeing each other's bodies. In particular, her boyfriend couldn't help but stare at her sister's breasts while she only focused on his well-endowed penis with a dark scheme brewing in her mind. The next morning, after her younger sister had gone to work, wearing a dress with no underwear, she stood in front of him and continuously used vulgar language, expressing desire and seducing the young man. With an attractive body, a lascivious personality, a beautiful face... all of these qualities surpassed those of her younger sister by far, so it was easy to understand why the young man easily succumbed. Their secret affair began smoothly from there until one day, the innocent younger sister Hatori discovered she had been cuckolded...

Diễn viên: Eimi Fukada