Strange...

This looks like an arc after the anime

Here's the link to the manga that follows the beginning of the novel and mirrors the anime
https://mangapark.net/title/371632-en-the-brilliant-healer-s-new-life-in-the-shadows

I have a feeling this might just be like Ascendance of a Bookworm manga where there were separate and almost simultaneous adaptations of the series. Great for LlN readers but sometimes confusing to manga-only readers

Oh my... thank you so much for answering, and thank you for link. Just watch the anime and it took my interest.