Both have mothers who go to great lengths to ensure that their kids receive the best education possible. They do this by working with the best tutors and adhering to a productive study routine. One of the actors in both dramas is Chani.

• Both are created by the Hong Sisters.
• Both series involve ghosts.
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? Both Jin Mi and Hae Soo, the female protagonists, underwent a drastic character development from a silly girl to a matured woman. They serve the same vibe. Trust me and watch till the end for they are not same as they were in the first episode.
? There are parts where Xu Feng reminded me of Wang So especially when they look hot and brooding in all black ensemble. Xu Feng also became an emperor at one point. Unfortunately, unlike him Wang So failed to get the girl. (ANNYEONG PDNIMS, WE STILL NEED THAT MOON LOVERS SEASON 2 THOUGH.)
? Both OTPs showed a love that consumes you. You can't help but swoon and root for them. But, Jin Mi and Xu Feng's pairing triumphed above their circumstances which gave as a happy ending.
? Both Run Yu and Wang Wook, the brothers of the male protagonists, vied for the female leads' hearts. Their ambition for the throne also got in their heads making them the antagonists.

The King in both dramas are fictionalized real figures. They are both regarded as ruthless kings but beyond that they've contributed a lot for the countries.

Both are crime dramas produced by tVN, and both are inspired by the movie, "Memories of Murder".

If you want to fill the void that Scarlet Heart Ryeo left, this drama is a great reliever. Like Scarlet Heart, it is a historical drama wherein several princes are fighting for the throne and surprisingly *insert the sarcasm* they are also vying for the love of the heroine. But what makes it better is that it is well - written. It has 54 episodes, which I hope you have the patience to finish, so it isn't that rush, unlike you-know-who. The heroine in the story is so much better. We’re at the point in the story where our heroine is being stomped on and typically, she’d lose heart or stay cheery and upbeat in spite of her circumstances. But not Wei Young. She’s more of the, “You might have the upper hand now but I’m still not taking your shit.” type heroine. All in all, JUST WATCH IT :)