This film contains the love affairs of stepmothers who become lustful as they fall into immoral incestuous relationships with their stepsons! After his parents divorced, Toshiya was taken in by his mother and is a student at a national medical university. When he meets his father for the first time in six years, he finds out that he has remarried a woman named Yuu. Toshiya can't help but be curious about his attractive stepmother, Yuu. Then, one day... ──Three women who crossed the line with their sons and revealed their perverted sexual tendencies as stepmothers! This is a must-see work for incest fans, showing the charms of stepmothers who tease their sons with intensity and tenderness!