A mermaid from the Joseon period ends up in present-day Seoul, where she crosses paths with a swindler who may have ties to someone from her past.
Gianna Jun
Shim Cheong / Se-hwa
Lee Min-ho
Heo Joon-jae / Kim Dam-ryung
Lee Hee-jun
Jo Nam-doo / Park Moo
Shin Won-ho
Tae-oh
Shin Rin-a
Seo Yoo-na
Shin Hae-sun
Cha Shi-ah
