Love is complicated. Love is full of trials. Love can cause death. Love sometimes miserable. Love is a kind of drug that every individual wants. Love can cause obsession. That's how the character meet her journey from a normal life to complicated life. It was all about love struck on this one person. She broke up with his boyfriend and end up as his ex boyfriend. Now being an obessisive rich ex, he hires ugly creatures to follow her everywhere. But then Lily end up beating them one by one with all her strength. However the chase did not stop so Lily's best friend, Namjoon help her to hide. Then with his crazy plans, Lily was put in a dangerous situation where in she will attend an all-boys-school which they think it is the safest place she can hide for the meantime. What will be the life of Lily inside the campus with those more than one hundred boys?