Sweaty skin, soft breasts spilling out of the towel. My sister-in-law's care was so inspiring for me, who was a virgin.

As I'm a two-time student, I'm staying at my older brother and my husband to concentrate on my studies, but I can't help but worry about my sister-in-law, Haru. That's because for me, who is so devoted to studying that I don't have a girlfriend, my sister-in-law's big breasts are very stimulating... I've been living a frustrated life and have been unable to concentrate on my studies. One day, when Haru was about to take a bath, he was hot in a long bath!? I take care of Haru, who has fainted, but as a virgin, Haru's body is so stimulating. ? ?