JUL-430 Sweaty bare skin, soft breasts slipping from the towel... My sister-in-law's care is too stimulating for a virgin like me. Haru Kawamura.

As a second-year repeat student, I'm staying at my brother's place to focus on my studies. However, I can't help but be drawn to my sister-in-law, Haru-san. Since I've been buried in books and don't have a girlfriend, her large breasts are incredibly stimulating… This restless life makes it hard for me to concentrate on my studies. One day, as I was about to take a bath, I found Haru-san passed out from taking too long a bath! As I tried to tend to her, her body was too stimulating for this virgin—.