Yu went out drinking with her friends, constantly complaining about her husband, when suddenly the table next to her started talking about the movie she was watching. So the four of them got to know each other. These two young men were both students, and Yu felt that she was very compatible with Yuzuru. Maybe because she was drunk, Yu went to Yuzuru's house to continue drinking. Seeing that it was late, Yu was about to go home, but Yuzuru kept her and took the initiative to kiss her, Yu did not refuse. From then on, the two gradually developed feelings for each other. Yuzuru gave her the key to his house, Yu often came to clean, cook, and take care of him. The two lived like a married couple, except that Yu could not stay overnight with him. Just when Yu wanted to go further, Yuzuru moved house, he had to go back to his hometown to help with his father's business. After a while, Yu met someone new, this guy also gave her the key to his house.