Three years have passed since Momo married her current husband, and she has successfully become pregnant. However, her husband gradually stopped returning home. While Momo grew increasingly lonely, she deepened her bond with her stepson, Masashi. In reality, Momo and Masashi's relationship had already begun two years prior, secretly nurturing a forbidden bond behind her husband's back. Is the child Momo is carrying her husband's—or is it Masashi's? As the truth unfolds, their relationship grows even deeper. A gripping story of hidden emotions, betrayal, and the turmoil of love.