While her parents were away, she had sex with her sister's temptation for four days.

Yura, the younger sister who was born after her parents' remarriage, has been enjoying my reaction by playing pranks and seducing her panties. One day, Yura's creepy and cute temptation escalates during four days when he left the house on a honeymoon that his parents couldn't go to! "You must have wanted to see Yura's breasts!" The space is alone with the two...the cute little sister who is not related by blood...they can no longer maintain their rationality and have forbidden sex! Within a limited amount of time, I was immersed in sex until the very last minute when my parents returned.