Recently, Yuu has been spending money recklessly. She goes out during the day with flashy makeup, returning home in the evening looking utterly exhausted. With no housework done, she keeps ordering takeout and immediately falls asleep—this routine continues day after day. Her son, Koji, grows suspicious of her behavior, yet when he sees her happily admiring stylish clothes and accessories, giggling like a young girl, he quietly suppresses his doubts. Intrigued by his mother's hidden side, his feelings slowly begin to change...