PhectMaphter

I hope the whole story won't be so full of narcissism or NPCs glazing the protagonist all the time, as it was with every character for those first few chapters.

It was Stelle who got the Blazing Lance and the recognition of Qlippoth. Pei Guang got the Trailblazer class.

Based

Like today, when you're facing a Lord Ravager who doesn't have a physical form?

Energy beings, like a certain Lord Ravager? Phantyllia's true form appears to be a Heliobus, and they're fire ghosts basically. So Pei Guang could, theoretically, use the Trash Can of Preservation to capture Phantyllia. Chekhov's Gun?

Who would win - the Ten Stonehearts or one trashy boi?

It's arrogance. Or maybe Pride, since that's the Sin usually attributed to Lucifer.

Xue'er doesn't exist though here

Are you just adding in random things every chapter? First chapter was somewhat understandable. The sequence of events was haphazard with important things happening off-screen and barely mentioned, when they feel more like things that should have been the prologue. But with both chapter 2 and 3, you're just adding previously-unmentioned things to his background, that feel quite important! In chapter 2 his origin is suddenly the orphanage from COTE, just worse, adding another not very necessary plot to this world. Miku expy is fine, you could have just added COTE expies, no need for the whole plot, since MC can just walk over everything, taking away every bit of possible tension or conflict. Not like they can do anything to him. And now you also retroactively added a Chat Group, which he supposedly had for a week already, but there was no prior mention despite it being literally relevant to the plot from chapter 1. Is that going to be a theme, every new chapter adding something entirely new and saying "oh yeah, it's been there from the start."

Man, you can't use first person and omniscient narrator at the same time xd "I listened to him, unaware of the true nature of the new Campione" you realize how utterly stupid and nonsensical it sounds? If you're using first person narration, you don't write about think the narrator doesn't know