I'm a huge fun of dashing Gong Yoo. The other main leads also did a great job. There's too many great things about this drama that's already been said and all I can say is "ditto, I agree". Two handsome men who looks like they're on a catwalk while saving someone or when they just went to the market, stands out the most when I think of "most memorable moments" for main male leads. They definitely stole our hearts, don't you think? The only downside is the obvious product placement and advertisements. Aside from that, the story line, acting and CGI were on point and superb.