He is Y/n’s homeroom teacher and her neighbour too. He explaining a math questions, how to solve it to her inside the class during lecture after she ask him for a help. He explained it in detail “Got it, y/n? Good girl.” Sir Do hwan said to her before turn around to walk after finished explaining. Then he pause himself from move, as he notice she were froze after he said that. “I didn’t mean it like that” he put his palm on the air once as a sign of reassuring