-Both are age gap relationship
- The relationship started with a secret
- Both are modern time drama
- Both leads work in the same building/company

- They both have the rich guy and the poor girl (well in this season she's not that poor).
- There is some kind of illness.

- both set in modern life.
- both are set in a gallery.
- start bad and with misunderstanding.
- the lead male fall in love with the lead female but she has different interests.

- Park Min Young is in both dramas.
- they both kind of start at bad steps.
- there is another love interest.

- both are historical dramas.
- they both has a current king and another potential king.
- the lead female helps the lead male in his journey.

1- both stories cover these genres: Action, Suspense, Mystery, Romance, Sci-Fi, Fantasy, Melodrama.
2- the lead male and female fall in love unexpectedly.
3- an interesting enemy the comes unexpectedly in every part of the story.

1- both the lead female and male fall in love but one of then die first.
2- reincarnation.
3- one is waiting for the other.
4- love triangle.
5- both are fantasy based stories.

1- both the lead female and male fall in love but one of then die first.
2- reincarnation.
3- one is waiting for the other.
4- love triangle.

1- the female lead is an actress.
2- the male lead is not related to the film industry.
3- pretend to be in love to solve rumors.
4- fall in love in real life but articles says they broke up.

1- female with problems.
2- male with open mind and "happy go lucky" life style.
3- love triangle.
4- younger male and older female.

1- male boss and female employee fall in love.
2- male boss has a problem with facing people.
3- love triangle.
4- trauma.

Both dramas follow the main couples love through many lives.
The male lead in both shows are in a position where they hold a lot of power. and the female doesn't remember her past with the male lead.
All in all both dramas are similar in a way, but i wouldn't say they have a similar story line. it's definitely different.