I need help finding a drama 😭🙏

I remember watching a YouTube breakdown of this drama like a long time ago maybe 2019, 2017 or before or maybe 2020

But basically what I mostly remember is there's this master of some sort who was betrayed and frozen in ice and the ml us actually the frozen master as a twist, also he had a concubine I think

I remember the introductory scene of the fl showed her in a forest or on a fairy forest by a river and she saves him or Smith? I don't remember fully but I think she wad a fairy or a nature goddess, but I don't think it was fairy and devil

Thank you!