Knowing that Lee Min Ho was playing in this drama that it would be a 10 rating. I believe in his acting and know it is great. Let me start with the storyline "on Point"! In two different periods of time, how hard can it be for the actors and actresses to play different eras of officials than con artists? Very hard if you ask me. Jun Ji Hyun did awesome playing the mermaid. I would love to see BTS on her being in the water (???). Lee Hoon Joon and Shin Won Ho deserve to be part of the main leads. I love how their characters stayed by Heo Joon Jae's side. Thanking the cast, crew, writers, and producers! Great visuals, music score, and costumes.