After losing her husband, Yuu raised her only son Ichiro alone. She decided to remarry her late husband's boss, Ho. However, Ho's stepson Yujuki, who had reached a certain age, began to feel excited by Yuu's adult, alluring body. Yujuki accidentally witnessed Yuu performing sexual acts on her biological son, and his desires were fully unleashed. 'I want to take a bath with you,' 'Do the same thing to me,' Yujuki pressed Yuu. Yuu deepened her forbidden affair with her stepson in this peculiar triangular relationship...
