Hong Dan-woo, who has thick hair, has a secret situation. That you can’t cut your hair right away! However, he has no business in front of money. In the end, Dan-woo, who visits a one-man hair salon for a part-time job, meets Kwon Tae-han, a handsome hairdresser who feels burdensome. Dan-woo made the mistake of fully feeling his hand cutting his hair. ‘That… it happens when you touch your hair…’ Eventually, he confesses his peculiar constitution to Taehan. Contrary to the expectation that he would treat him like a pervert, Tae-han says he will rather help. Dan-woo starts to become addicted to the secret training he started for a better self.