ROYD-191 My brother's wife and I were supposed to have a kiss-only relationship...but we couldn't stand each other, so we covered each other with saliva and secretly had inseminated sex over and over again. Momo Shiraishi

Momo, a wife, begins to feel disconnected and uncomfortable from her work-oriented husband. Meanwhile, she becomes attracted to her brother-in-law, who lives with her, and a forbidden love begins. They make a promise of just a kiss and deepen their secret love. But the desire doesn't stop. Even though they have regrets for their husbands, they can't control their passion for each other and go beyond the line into creampie sex. It depicts the fate of two people who are consumed by love and desire.