Yurika, a 40-year-old housewife, lives a mundane life overwhelmed by her husband's busy schedule and the demands of raising children. One morning after jogging, she is accidentally caught masturbating by Yano, the college student who lives next door. As youthful desire collides with mature allure, the two begin an affair bound by one rule: "Only weekday mornings." This is a passionate love story exploring a married woman's body and hidden desires. Breaking free from the routines of daily life, it pulls them both into an intense whirlwind of forbidden emotions.