Hwa Sin is a tad aggressive at times but it was refreshing to see a more complex character than in other kdramas. I like to think he saw Na Ri as an equal in his workplace and treated her as such but it depends on your perspective. Jo Jung Suk's acting saved the character with his microexpressions really. Did get boring around episodes 15-17 but hang in there it's an excellent lighthearted comedy from start to finish. Jung Won was pretty bland and poker face all the time so no second lead syndrome for me here. Also absolutely loved the soundtrack! I have it on repeat.