Ever since Sungmin was young, she has dealt with bullying at school, her parents constantly fighting and her older siblings Chungho and Minsoo who left her behind. Now it's Junior year and Sungmin and her best friend Rachel are off to a fresh start, but as class is about to start, someone catches Sungmin's eyes. The new student, Namjoon. Rachel catches Sungmin looking at Namjoon, and plans for them to meet, changing Sungmin's whole world. But when times goes by and their friendships forms, little does Namjoon know, Sungmin is crushing on him badly, unable to confess her feelings to him. Sungmin also feels like Namjoon and Rachel aren't telling Sungmin something big as she notices them acting questionable together, but that will shatter in one day when Sungmin accidentally discovers something shocking. Friendships will break, relationships will form. Soon betrayal and revenge. Will Sungmin get passed her strong feelings for Namjoon? Or will she discover someone new?