This was my first Korean drama, and I watched it because of all the hype around Korean and other Asian dramas. The story could have been a 10/10 if they hadn't made the cheating husband seem good and loving towards the end.

The supporting characters' acting was top-notch, especially the villain mother, who really made my blood boil.

Assistant/lover of the villainous mother was also great, especially with his way of applying chapstick.

Mistress/girlfriend of the cheating husband was a good actress, but her role wasn't as important as it seemed in the beginning when she was portrayed as a potential villain or second female lead.

Cheating husband's acting was impressive too; even though I hated him at first, his portrayal made me pity him and see him as a loving and caring husband and father, despite his inability to express his love.

The female bodyguard/spy and even the child actor were also very good.

But, I was disappointed with the forced chemistry and pretentious acting of the main leads. There was no chemistry between them. And what's with the chewing gum every time he went on a task? Both the male and female leads acted as if they had learned some expressions and had to use them according to the scene. I had to play the video at 2x speed whenever their scenes came on because they were such a turnoff for me.

Overall, good story with great supporting cast with weak leads.