A housewife who has been married for 20 years and lives an ordinary life. Lately, she feels her heart growing colder as she gets older... She wants to experience the passionate sex she had in her teens, where just a kiss makes her heart race. A one-day-only boyfriend and her first and last extramarital unprotected sex. Mako (42 years old), resident of Taito Ward, Child: Son (18 years old)