You and Wonwoo were each other's first loves in high school, but no one knew how much the other loved them. Finally, you and he stopped in regret. Just because you guys didn't understand each other well, they stopped this relationship. 3 years later, the day you graduated from college, you happened to see Wonwoo also attend the graduation ceremony.He saw you from afar, you were sitting on the bench behind the school yard when the graduation ceremony had ended. Hey!