Suk Moo is shocked to realize that Yoo Young had no happy memories with him. At home, Suk Moo and Hwi Roo argue again over petty things, so they end up deciding to put up some rules to follow. They try to show each other that they’re having a fun time by their own, and it leads to a childish fight over social media.
휘루는 마루와 함께 간 공연장에서 옷자락 밴드의 멤버, 시호와 인상적인 만남을 갖게 된다.
한편 또다시 사소한 문제로 티격태격하게 된 휘루와 석무는 동거 규칙을 정하는데..
