My only comment for this chapter is that it's spelled "treant", not "trent". Trent just makes me keep imagining they're going to go beat up a bunch of dudes named Trent.
Actually we do - there are two prequel stories.
https://www.novelupdates.com/series/hakai-me-no-yuuri/
and
https://www.novelupdates.com/series/half-dragon-slave-life/
The first being the origin of Yuuri (god who keeps helping out) and some other characters.
Even the title of the second one tells you enough to answer that question. There would a few returning characters from there too.
Now the stories are self-contained enough that you can read them in any order with no spoilage.