After being heartbroken by her ex-boyfriend’s betrayal, Dohee vows to enjoy only casual relationships from now on. Then, two men appear in her life. One is her cold and aloof yet handsome boss. The other is a sweet and charming flower boy—an A-list actor? As she simultaneously dates these two men with completely different charms and sexual preferences, Dohee comes to a realization: she’s a “switch.” But in one month, she must choose just one of them. Who will Dohee ultimately choose?