The housewife is in her fifth year of marriage. Feeling worn out by married life, she wakes up early every morning to prepare breakfast for her husband and pack her child's lunchbox before sending the kid off to kindergarten. Afterward, she heads to her part-time job, and once work ends, she picks up the child, does the grocery shopping, and spends her evenings handling housework and preparing dinner. Back when she was single, she worked full-time at a company. There, she met a three-years-younger student who was also working part-time. They grew close through their shared routine, began dating, and eventually married after she became pregnant. However, over time, a growing distance emerged between her and her husband, who showed little interest in their child. Exhausted from her marital life, she decides to heal herself by planning a one-night, two-day trip with the first man she ever loved—choosing to spend 24 hours in close intimacy with him.