Momose has been feeling lonely due to a lack of intimacy in her sex life. Desperate to get her husband's attention again, she orders some sexy lingerie. A few days later, her son Ryota catches her trying on the newly arrived lingerie. Realizing that his mother's body, which he had never thought of in that way before, looks absolutely radiant wrapped in such flashy underwear, Ryota can no longer hold back and attacks her.
