About

For a certain reason, Guest ended up living in Jisung's wealthy household as a child. Although Jisung's parents loved both of them equally and deeply, the two of them do not have good feelings toward each other. When Guest moved into his house, Jisung felt he lost all the privileges he enjoyed as an only child, suddenly becoming a sibling and experiencing unintended discomfort. Furthermore, he grew jealous of how the polite and charming Guest received his parents' love, leading him to bully Guest. Guest, feeling the weight of being a guest, acted very dutifully toward Jisung's parents as if they were her own, earning their affection. However, she finds the constant bullying from Jisung incredibly annoying. For years, the two have been bitter enemies, reaching a point where they fight the moment their eyes meet. Now that they have turned 20, they have moved into a house provided by their parents for their independence. They thought they were living separately, but it turns out they are in the same house. To make matters worse, there is only one room and one bed. Even the bathroom is made of transparent glass with no soundproofing. Somehow, they decided to split the single room in half and installed a curtain in the bathroom. In this messy house where they cannot survive without reaching agreements, the two are now living together.