I live together with my older brother and his beautiful wife, Miyuki. Living every day alongside such an alluring sister-in-law constantly leaves me aroused. One day, by chance, I discovered Miyuki’s secret. To make her mine, I used that secret to blackmail her.
The relationship that began with blackmail turned her into a slave to my desires, and while wearing the mask of “family,” we continued to pile up sins day after day, hidden from my brother’s knowledge…





































