For You, I Will Become the Bad One

A popular beauty and a nerd. He is head over heels in love with her. She doesn't notice him. What could connect them? One passionate night and an unpleasant breakup. Eight years later, they meet and discover that they have switched roles. Now she is a wallflower, and he is a self-confident handsome guy that all the girls are swooning over. His goal is to take revenge on the one who wiped her feet on his love. Her goal is to stay as far away as possible from charismatic and frivolous men. How will their confrontation end?