It's the same story basically with the servant pretending to be the fiancé of the rich guy, then the real fiancé later on wants the rich guy. Also both have a sister and the "crazy" nurse who takes care of the sis. Mia Jam Pen to me is better, but yeah the similarity is so big between the two dramas.

It's the same drama just one was made in 2001 and the other is a remake in 2015. Andrew in the 2001 version is so AMAZING highly recommend!

Both dramas have the same leads as the main couple. Also both dramas have a contract relationship as part of the story theme.

I saw similarity in the two in that in KC the ML seeks revenge from FL bcz he thinks she kills his fiance and in MBJ the FL thinks the ML is the cause of her father's death. Both go from hate and misunderstanding to love. Both are very great dramas!

Both MRA and MBJ are similar in that the the ML is a widower with a kid. There is interaction between FL and the kid which is super cute motherly love. in MBJ ML has a daughter and in MRA he has a son. Also in both we see the development of a family super cute!

The two stories are different but whats so similar is the female lead being all about money at first but changes when she meets the main guy and his kids. Also in both stories the FL get close to the kids and the ML. Gives the same vibe.