Mika shared an intimate relationship with her son Takeshi whenever her husband was away. In daily life, she acted strict toward Takeshi in front of her husband, tightly controlling his behavior. But the moment her husband left, Mika transformed into a lustful mother, caring for Takeshi in every way—assisting him in the bathroom, bathing together, even helping him masturbate—adoring him as if he belonged entirely to her. This was no ordinary affection, but a deeply rooted, forbidden bond.