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. Jun Ji-hyun, Lee Min-ho, Lee Hee-jun, Shin Won-ho, Lee Ji-hoon, Hwang Shin-hye, Choi Jung-woo Added on Hulu 2022-03-29. Youtube Trailer