Tells the romance story of a girl named Hye Ri. She goes to Gangwon Province on a graduation trip with her friends. There she meets a mysterious man Woo Hyuk who runs a guest house. She gets attracted and closer to him and decides to name him “the mermaid prince”.
Seoyun ends up on a sharehouse with three men and one woman after taking a break form university and finding her dish. She notices that someone keeps stealing her ramen.