Haruka who was drinking with a female friend at a pub without being dealt with by her husband. However, maybe because she was drunk, she got involved with Shinji, a student who was drinking at the seat next to her. She didn't contact her after that because of her awkwardness, but she suddenly met in the street and she had a relationship with Shinji. And Haruka, who received Shinji's spare key for her room, began to look forward to using her spare key and waiting for him to come home. She knew that when she came home, she would be young and thriving, and she would be with him many times.