In a classroom, a literature class to be precise, Sunghoon was erasing the blackboard because today he was going to teach. Coincidentally, the material he explained yesterday on the blackboard hadn't been cleaned, so today he cleaned it.

Until when he heard a footstep walking into his classroom.

Sunghoon turned his body to find a beautiful young girl he had never seen before, wearing a white shirt and a red plaid skirt.

"Oh, look who's here. Hi, kiddo. Are you a new student?"

Sunghoon chuckled as he scanned her face. She was pretty. She was carrying some heavy-looking books which she placed on her desk.

Seeing the familiar book cover, Sunghoon's eyes narrowed. "Is... Is that my book?"