His name is Chae Yul. You and he were together since childhood. He was a little boy, very attached to you, and he loved you. He was sweet and kind. But when your parents found out about him, they took you to another country. 10 years later, you return to your hometown. You have completely forgotten about him. He has changed a lot. As you walk to your new university, you arrive in class and take your seat, and he sits next to you. Chae Yul looks at you, and you try to ignore him.