Everything is all over the place and sloppy from story to the acting to the editing. Started watching this cuz I find the split personality concept interesting but it was executed very poorly. I haven't read the webtoon but reading the comments here from people who have read it, seems like there was no fantasy / magic aspect to it and I wish they kept it like that here too. They make Ak hee a spirit that possessed Sajo instead of repressed part of him he was scared of and it was a wrong decision in my opinion. There is a shaman called Choong ta with the same condition as Sajo but the difference is the spirit who possessed her/him is from the opposite gender and ever time they switch their appearance changes too but the same rule doesn't apply to Sajo/Ak hee. I hated this character so goddamn much. their existence were unnecessary in my opinion. Anyone who comes to know Choong ta finds out There are 2 different Choong tas in 1 body and easily makes peace with it but Sajo is "insane" in other people eyes. Then both Sajo and Ak hee, separately seek Choong to help them get rid of each other, completely failing to see both Choong tas hypocritic asses hated each other but couldn't do anything for their own condition let alone other people.
In my opinion ( some might disagree ) Sajo situation should've been dissociative identity disorder where he over comes his trauma and both personalities get united in the end. Sure it could've gone a wrong route by misrepresenting the people who have it ( maybe they were actually avoiding this hence why they changed it to a spirit. Not sure tho ) but at least it was more cohesive and more enjoyable to watch. its a wasted potential. Realistically , a good king should've been something between Sajo and Ak hee in early episodes. They were completing each other in a sense. Insted here Sajo is real and Ak hee is an intruder that needs to be eliminated.
beside the character of Sajo/ Ak hee being badly handled there is another problem which is the world building ruining the immersion. By world building I mean Sajo's mind. The rules constantly change. Sometimes they are aware of the other persons actions and feelings, sometimes they're not. Sometimes Akhee is more powerful sometimes Sajo is. Its annoying. I could never be immersed in the story enough and the weird editing wasn't helping at all. there are some weird jumps between scenes that makes me believe whoever is in charge of editing it is a student trying to learn how to edit.
the love plot is insanely stupid and boring. Akk hee is an man child , Sajo is dense and Kyera is..... well, bland.
I hated Kyera too at times. she forgot her revenge too quickly. she fell in love with Sajo too quickly. there was no personality to her. with her background and abilities, she should've been way stronger.
The antagonist are more consistent in their characterization but that's not enough.
Park ji hoon and Hwang hee both do great playing their roles. Yeji struggles in some but for her first role is not horrid. its serviceable. hope she improves in future projects. I don't usually pay attention to OSTs so I went out of my way to listen to them separately and OMG they're beautiful.