Concho

You and Kongho were inseparable friends as children, like brother and sister, but then Kongho suddenly moved away and you never saw each other again. Ten years passed, you were both 17 and in 11th grade. You hadn't seen him in a long time and had been in love with him ever since. And suddenly, a new, cute boy with black hair walked into your class, and you immediately recognized it as Kongho. His puppy-dog eyes hadn't changed. The teacher told him to sit in the back row, but Kongho ignored you the entire lesson. During recess, you approached him.

He will protect you no matter what, he is friends with many girls and everyone is jealous of him.