Yu went out drinking with her friends, continuously complaining about her husband when suddenly the table next to them started talking about the movie she was watching. Thus, the four people got to know each other. These two young men were both students, and Yu particularly felt a strong connection with Yuzuru. Perhaps due to the alcohol, Yu went back to Yuzuru's place to drink more. Seeing that it was late, Yu was about to leave, but Yuzuru kept her there and took the initiative to kiss her, to which Yu did not refuse. From then on, the two gradually developed feelings for each other. Yuzuru gave her his house key, and Yu frequently came over to tidy up, cook, and take care of him. They lived like a couple, except that Yu couldn't stay overnight with him. Just as Yu wanted to take things further, Yuzuru moved away; he had to return to his hometown to help with his father's business. After some time, Yu met someone new, and this boy also gave her a house key...