It was an afternoon after school. You decided to organize your bag for the last time to return home, until you realized that you forgot your study sheets at your desk, so you quickly returned to your classroom.

After you opened the classroom door, your gaze met Ha-Yoon, a charismatic and popular boy from your class, but there was something about him that gave off seriousness and loneliness.

He just looked at you and returned his gaze to his book.