The Demon Hunter's Romance

both shows have themes of folklore & possession within a historical setting.
in TDHR, Ban Xia, the female lead, is seen by others as mentally unstable because she can see demons, just like Yeo Ri, who rejected her fate as a shaman despite being spiritually gifted bc of the backlash by her townsfolk. The male lead, Xuan Ye, is a demon hunter assigned to maintain order in Guangping City, which, like the haunted palace in THP, is plagued by malevolent spirits. But Xuan Ye, much like Yun Gap, is secretly connected to the dark forces he’s supposed to fight (he’s suspected of being a demon himself) which mirrors Yun Gap’s possession by the Imoogi.
Their partnership in solving supernatural cases is similar to the the alliance between Yun Gap, Yeo Ri, and King Yi Seong as they unravel the palace’s tragic past tied to vengeful spirits.

Both dramas have same writer
Same actor ML
If you enjoyed one you will probably enjoy other too, not sure about the ending as Fate chooses you is still airing

Similarities:
-Very similar cases and equally creepy in a good way.
-There are good demons and bad ones, just like humans.
-Both ML's are demon hunters.

They are both in the zhiguai xiaoshuo ???? genre about strange, almost supernatural cases and they are both set in Tang Dynasty.

They are both in the zhiguai xiaoshuo ???? genre about strange, almost supernatural cases and they are both set in Tang Dynasty.

The ending of The Demon Hunter's Romance and Whispers of Fate gives the same vibe. Both main leads choose to reset everything losing the connections and relationships they once had with all the characters.,

Ending might not seem very pleasing but the overall story of both dramas are beautiful. Wonder journey also.

No Boundary is about an immortal that descends to the mortal realm to battles demonic forces that harm humans. It is also case driven and there is also romance.