The Secret Romantic Guesthouse (2023)

Lee Heon is the king of Joseon. 7 years ago, when he was a crown prince, his beloved wife died. To this day, he has not been able to get over her death. For the past 7 years, the royal family and government members have tried to get King Lee Heon remarried without success. The nation has also implemented a geumhonryung edict, which is a ban on all single women marrying during this time when the king has not married. People are furious over the marriage ban. One day, King Lee Heon hears of a woman named Ye So Rang, who claims the spirit of the king's late wife exists within the royal palace. Meanwhile, Ye So Rang is a swindler and claims to interpret marital harmony signs. She is arrested and jailed where Officer Lee Shin Won works. To get out of her predicament, she pretends to be possessed by a spirit in front of Lee Shin Won. During her ruse, she mentions that the spirit of King Lee Heon's late wife exists within the royal palace. She is then brought in front of the king and he asks her if she can really see his late wife's spirit. To survive, Ye So Rang acts like her body is possessed by the king's late wife. Ye So Rang's lies get bigger and more audacious.

Yu Jin was raised within the desert tribes of Xiong Nu, although her foster father is a Han. Under certain circumstances, she was forced to flee to Chang'an, the then capital of the Early Han Dynasty, changing her name to Jin Yu along the way. Along her journey, she first meets the calm and kind Mo Xun (aka Jiu Ye, ninth master) and later the handsome, cold general Wei Wu Ji. Jin Yu falls for one of them but is rejected. Will she untangle her love knot? Who will she choose in the end?

Both sageuk portrays independent FL falling for the ML without knowing their real identity, and has very interesting characters and relations surrounding them. Also includes the unavoidable political plotline every historical drama has. There's a good balance of humour and seriousness.

Both are historical dramas in which the ML is a prince who ends up on the run outside the palace, and helped by the FL who is unaware of his identity. Both MLs have a half brother who palace people are scheming to put on the throne in his place.

Samet story of Searching for the missing crown prince, although the story is different. It was Jang Uk, who turned out to be the crown prince, that is, his father's soul was king but his body was eunuch. Unlike Lee Seol, he ran away from the kingdom but he slipped away by taking the test of becoming a soldier.

Both share a FL running an inn/boarding house, a ML who lost his father which causes him to hide his identity, & a family secret.

It is believed that when a person dies, their soul spends 49 days in Jungcheon, or Purgatory before their eternal fate is decided - heaven, hell or rebirth. That's where accomplished demon hunter Yi Kwak finds himself as he lies on the edge of death in our world. Blessed with astounding swordsmanship and the uncanny ability to see the evil spirits invisible to most, Yi enlisted with the royal squad of elite demon exterminators, the Chuhyongdae, following his fiancee's tragic death. In Jungcheon, he finds Yon Hwa again, but she does not recognize him - she is a spirit of the afterlife now, severed from earthly memories. Moreover, she is deeply entangled in a great war between the white-clad warriors of reincarnation and a swarm of dark spirits determined to forever shatter the cycle of life and death. The battle is desperately close to a terrifying conclusion, so Yi must draw his sword to defend the woman he loves and all they hold dear - and confront the same soul that was once like a father to him.