Husband on a business trip. An unsatisfied body. Yuka, whose accumulated dissatisfaction exploded, reached orgasm through masturbation. Knowing her loneliness, her only son decided to take his father's place and embrace Yuka if it could alleviate her loneliness even a little. "I don't want to see my mother sad anymore," Yuka, feeling her son's strong determination, allowed her body to be taken... Once she tasted the intense pleasure, it consumed Yuka, turning her into a body that couldn't be without her son...