Some people like to stay at home doing nothing, and they are called a “homebody.” However, five homebody celebrities join this show to stay together and spend a holiday together. Actor Lee Sang Woo, Kang Daniel of Wanna One, Yong Jun Hyung of Highlight, Xiumin of Exo, and singer Park Jae Jung move into the same house. Will they be able to get along together?

One day, high-school boy Yamada bumps into the beautiful girl Shiraishi on the stairs (literally), and their lips touch as they fall. When they regain their wits, they realize that they have swapped bodies. As time progresses, the two realize that this is not the only mysterious happening in the school.