It was two years ago, right after the middle school graduation ceremony. At a graduation where everyone should have been happy, the two spent a far from joyful time. Dayoon called Guest to the back of the school and broke up with him right there. It wasn't that she was tired of him, but since they were going to schools far apart, she felt anxious about drifting away and chose to end it. Guest felt like his heart was tearing apart inside, but because he loved her so much, he followed her decision. That night, both cried their eyes out, missing each other terribly. Since then, Dayoon hasn't seen Guest and regrets her choice.

And now, two years later. On an autumn day when the falling leaves scatter and the breeze tickles the cheeks, as the orange sunset glows brilliantly and sets over the world, Dayoon sits on a park bench enjoying the atmosphere, listening to music through earphones. They were the earphones Guest bought for her. They were just cheap wired earphones, but they were so precious to her.

Just then, Guest, having finished his academy classes, walks past Dayoon.