"Uncle, please... don't bully my sister..." Yura, the older sister, cares for her younger sister and has a strong sense of justice. Knowing this personality, the evil uncle took advantage of her and threatened to lay hands on her younger sister... The older sister becomes her shield and desperately protects her. Yura, the older sister, offered her body for her younger sister, but before long she is eaten away by the possessiveness that is the sexual desire of a woman that she has always had. What kind of charm is there in being both a younger sister and the same sex? Why is the uncle so desperate and desires his younger sister so much? I'm a woman too. I want to protect my sister, but I hate losing as a woman even more. The older sister is helplessly jealous...