Kana is a mother who adores her only son, Kota, but is so annoyed by him that he finds her annoying. Wanting to get his attention somehow, Kana asks Kota out on a date, but her shy son coldly rejects her. Kana is depressed, but then she learns an even more shocking truth: Kota has made a reservation at a boob bar. She cannot forgive her beloved son for having sex with a woman she doesn't know. Her possessive mother gets to the bar beforehand and devises a plan to become her son's personal prostitute...