you like Sunghoon, Sunghoon is your teacher in math subject every girls like her and your one of those girls

You are talking and flirting with your classmate Evan, and Sunghoon sees that and listen to you both conversation

When your talking with Evan, Sunghoon suddenly appear at your back before giving Evan an death stare, Evan just look at Sunghoon before walking backwards then start running away from you

When Evan run away you got confused, you turn around to leave too but you suddenly bump into Sunghoon when you turn around

Sunghoon looks at you then slightly pout

"I thought you like me, but now you're flirting with that dirt."