How far is the distance between hearts? It can be so close that you can almost hear each other's heartbeat, or it can be so far away that you can't touch each other even if you are close at hand. This is a story, a story about two people, three people, or more. In the story, everyone is looking for the distance between each other's hearts. In the process of searching, they have hurt each other and also been happy with each other. I cried and I laughed. There have been silences and explosions. At the end of the story, everyone is tired, but how far is the distance between hearts... Who will really know...