This drama was amazing!!! Props to the and the entire team who created this drama. This was one of my first dramas and the acting, the OST, the plot, everything was beautiful!!The chemistry between Sim Cheong and Heo Joon Jae is cute yet strong . This drama has many things going on which includes comedy, fantasy, romance, history, thriller and suspense (which makes it very interesting i promise!!). Lee Min ho (Heo Joon) is such a great actor. He embodied his character really well and Jun Ji hyun ( The mermaid / Sim Cheong) is also such a good actress!!