MADV-641 Please don’t say anything… While my wife was away, my younger sister-in-law came over… I couldn’t resist the sight I accidentally caught in the bathroom and her unguarded figure, and I ended up crossing the line with her many times… Yukine Nagasaki

An unspoken line is crossed with my wife’s younger sister, who came to help out. I caught a glimpse of my sister-in-law’s behavior, and before I knew it, she was standing beside my bed at dawn… Her vulnerable sleeping姿 stirs an irresistible desire that keeps growing. Disillusioned by a secret act she can never tell anyone about, the younger sister is torn between guilt and inner conflict. Caught in a swirl of forbidden feelings, she becomes increasingly overwhelmed by emotion and eventually moves on her own. Please don’t tell anyone—those words say everything. A forbidden story filled with a tense, alluring atmosphere.