First ep is a mess and tries to do too much but I had a lot of fun watching. I think the drama should really stick to the comedy and less of the historical/medical storylines. Kim Jung Hyun is a comedy genius and Im Soo Hyang shines when she's playing goofy/upbeat so comedy in the way to go for this drama.
I wrote a review for ep 1 if you wanna read more of my thoughts 🙂
https://dramatoast.com/kokdu-season-of-deity-episode-1-review/