Yoon Seo-bin

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”.

When Ho-jun receives an ultimatum to move out and become a successful team leader, he must rent from feisty Jae-yoon, who owns a villa. But when a twist of fate transfers Jae-yoon to Ho-jun's team, he becomes his unwilling employee.

Jun Ho is a vampire who is about to die. To survive, he will need to drink pure blood and thus become a human. One day, while searching for this pureblood, he meets Min Hyun, a human with pure blood. But another vampire named Hae Soo, who knows about Jun Ho's past traumas, causes Min Hyun and Jun Ho to fall out.

Yoon-soo is a dedicated office worker who immerses himself in his job, shuttling between home and the office day in and day out.

A veteran sprinter who is getting one last opportunity to re-kindle the love of his life, and a happy-go-lucky high schooler who pulls out all the stops to win over the love of Ji-eun.