I am in love with the actor, he is really great and has a sense of humor. I love the chemistry between the main actors. They really did their role well. Also, I liked the actress' mom, her character is warm and lovely. she treat her son of law as she his real mom even after he divorced. I really enjoyed listening to her dialect.
And I can't forget the secretary Tak, this man add a humor to the drama. The other characters are not good enough and some of them are boring and annoying. The OST was great specially "Good by My Love"