When oppa falls in love with his fangirl 

Today is just another boring day in class. As always, the lecture notes are filled with your creativeness all over the blank spaces.  This is what you do during lessons to kill time. You started to scribble on the paper while waiting for some inspiration to strike you. You were so engrossed you don't even know the next class has started until you heard an unfamiliar male voice whispering beside you. Who is this guy?