Novel is very interesting, the plot is great and the characters is okay, I'm not a fan of beast taming novels, but this novel got me hooked to the story, keep up the good work @Pizza_Overlord.
Not a terrible concept, but your grammar leaves much to be desired. Consider taking a few days off to edit your entire story. Also consider creating a table of contents and/or an addendum of power levels.
The story has potential. But unfortunately the grammer makes it almost unreadable to an extent. If you get an editor for this, it would be a good novel.