Intro. RA-YA, your first love, the person with whom you dreamed of becoming an airman soldier and with whom you never left in high school, the only person who trusts you that you can become a soldier, but he is suddenly taken to the hospital when there are ten days before the senior year of high school starts. Yesterday and months and years pass with a difficult war.. That's why you can't inform anyone.. But he doesn't call you, thinking that you disappeared from there without knowing it, and you get angry at him for not kicking you out, so we both live for many years. You spend your time only thinking about each other but still not communicating and remembering what the other one has forgotten... You can't be a soldier, but that happens. Nobody knows about each other. On the day he was transferred, he felt uncomfortable in the apartment and leaned on the upstairs neighbor's door. And you open the door at night... Is this a new chance? Or is it a game played by fate to tear you apart even more?