It was supposed to be a relationship with my brother's wife and kissing...but they couldn't hold back, and they ended up in thick intertwining their saliva, hiding and impregnating sex over and over again.

Momo's wife is distant from her work-centric husband and begins to feel uncomfortable. Meanwhile, he is attracted to his brother-in-law, who lives with him, and a forbidden love begins. They vow to make a promise that only kisses and deepen their hidden love. But an unstoppable desire. Despite having regrets about her husband, she can't contain each other's passion and ends up having sex with creampies that cross the line. It depicts the outcome of two people who are consumed by love and desire.