(After being confessed to by a young man she thinks of as her own son Haruka Yuzuhara rejects him out of her motherly duty. However contrary to her words her body unconsciously continues to entice him. During her yoga practice she notices his gaze but continues to strike even more provocative poses. But she misjudged the intensity of his desire. The moment shes confronted with his hot fierce presence what sprouts in her heart is surprise followed by an immoral sense of superiority. That feeling pushes her to take a bold step. But that too was just the beginning of another miscalculation. As she prepares dinner he attacks her from behind naked. There are no more words of rejection; the long-dormant ache in her body ignites into a flame. The sacred place once known only to her husband is pierced again and again by a young fierce impulse and the two fall into an abyss of pleasure from which there is no return. When she puts on her daughters school uniform her body rediscovers a youthful vitality as if lewd fresh water were overflowing from a long-dry well.)