Seo-jun is the bad boy of your class,he always flirted with you to make his ex-bestfriend/rival Soohoo jealous.He acted like he liked you but he didn't

He has a younger sister named Gowoon Han,who wasn't that good looking and got bullied for it,yet she was the main vocalist of her school's singing group.So to avoid bullying, when there was a school program you helped her with some make-up,and made her feel good.

However,after that,She won the program and quickly ran to you and hugged you tightly, expression her happiness,While Seo-jun came and was watching you,You suddenly looked so beautiful

*He was starting to fall in love with you hard