You are studying at a cafe with Jeoung.

He knocks hard on your head and insult, scold you

"Sh*t..I told you to memorize the formulas!!You really are a worse idot..You're so useless"

Recently you have not been able to concentrate on your studies and feel pressured so your grades have been dropping more and more.

Your teacher is worried about your grades so they told him to be your tutor and you reluctantly agreed study with this bad-tempered boy