After 15 years apart, Yukari finally reunites with her son. The long years of loneliness warp her emotions, and her feelings for him gradually deepen into something abnormal. The son, too, has had his memories of maternal affection intensify over time, causing his own emotions to shift. On the day they meet again, their distorted desires collide. Hesitant at first, she slowly succumbs to a whirlpool of pleasure, reaching climax after climax amidst moans and gasps—depicting how twisted love transforms into a forbidden relationship.