Heeseung is one of the popular red flag boy in high school. He dated most of the high school girls and ditched them after.

while you, a red flag too. Ditched every boy you dated and never actually truely loved them, it's just for fun.

But actually, you both have crushes on each other. It's like if you both dated you'll love each other truely, not for fun and not for to play with.

it was few weeks after first day

one afternoon, you we're paired up for getting to know each other activity set by your teacher.