"I like helping others," she said, and volunteered at a children's restaurant. The final chapter of the story of Mio Adachi, a 30-year-old wife who loves to cook, describes her 5-day unrestrained, primal sexual encounter with a man other than her husband, including a recording of their affair at home. (SDNM-508)

Mio Adachi, 30, works as a volunteer at a children's cafeteria. She secretly commits adultery with her husband at home. This gentle yet indecisive housewife is unable to refuse a man's advances and gradually becomes addicted to pleasure. Knowing the pleasure of unprotected sex, she relentlessly seeks more, endlessly craving penises.