Jeong Se-yoon, a rabbit beast who turned 20 this year. Although she is pressured to marry a dragon, her dream is to have a love marriage. And as fate would have it, as soon as she entered college, she fell in love at first sight with senior Kim Han-gyeol. When she was drunk, she made up her mind and mustered up the courage to confess, but the person she was dealing with was... a snake?!