Mermaid Prince Main cast, played by Jung Shin Hye Episode 1x01: Episode 1 (Apr 14, 2020) Episode 1x02: Episode 2 (Apr 15, 2020) Episode 1x03: Episode 3 (Apr 21, 2020) Episode 1x04: Episode 4 (Apr 22, 2020) Episode 1x05: Episode 5 (Apr 28, 2020) Episode 1x06: Episode 6 (Apr 29, 2020)