“What if I could live a completely different life for just seven days?” We spend our ordinary days dreaming about it at least once. “What if I date a really cool guy? What if I become someone else?” This story shows these kinds of imaginations before our eyes. Da Eun, a college student who is still finding her career path, becomes Byul, who has been a singer since she was young. Da Eun spends time with a celebrity named Jung Woo and experiences the dreamy life of luxury, while also seeing its dark side. Byul also experiences the preciousness of everyday life, something she hasn’t felt in a while as she became a clumsy part timer at a café with Ji Han and Ari.