Incest stories are probably no longer strange in the country of Jav, and the Mako sisters are no exception. Her parents died early, so when she got married, the sister still had to take care of her younger brother who was in high school. Although she was married, due to her lewd nature and liking young men, she defied her flesh-and-blood relationship to solicit love for her little brother, in order to have sex with him. She has constantly performed sexy, erotic actions such as playing with sextoys in front of him..., although she has tried to restrain herself many times, but in the end, in front of her sister's seductive big breasts, he has become super heartbroken and the young man's curiosity about sex emerges. The clumsy and incest story between the two began to occur from here...