"new message from unknown" huh? who's this? ㄴnamjoon x reader storyㄱ ㄴbts fanfictionㄱ [ COMPLETED ]

in which he catches her cheating off of him on a math test, a kim namjoon ff.

"Don't you see that I'm busy?" He snapped his eyes towards me. He then stopped eating his food and put his spoon down. "I know, but today is-"