Wise_Weed
This chapter contains conflict with the guild so he can leave it, why would it move to the prologue?
Yeah... Auxiliary is used by other authors for extra info. The Real use of Auxiliary is for side stories and chapters that do not fit into the storyline.
reptar:Auxiliary mess provide additional information. I’m not an author but if you were to write a prologue be like, “I challenged the world, but defeated by my lack of status(or something else, flesh it out) and now another opportunity is presented before me” flesh this idea for a prologue
I agree with the others, you've put too much information so far, it would be a shame to scrape all of it just to put this chapter as the Prologue, even with auxiliary chapters. People would think the auxiliary are spoiler chapters. If you do that, you'll need to re-explain everything with many flashbacks and wall texts, you risk having many new readers dropping it. The story have a good pace, don't cut it off. Plus those chapters gives us time to learn how Samar works, his talent and motivations, and why he decide to get kicked of his guild now. New readers would miss all his character progression.