Our first concrete sightings of the current main antagonist, huh. I see, very interesting to introduce it this way!

Hmm, the narrator is much more active compared to the preceding chapters, no?

This is what all the lonely people say xD

Kids are always so honest, huh? xDD

Hina-chan is a mind-reader? ESP'er?? Whaat

Ooo, her first proper job! I like that Estelle is depicted as a greenie and that she still was a bit clueless. Moreover, I sense a good space for growth there, I'm excited to see where this goes! Also, that mysterious power might become a very cool plotpoint! Though I do wonder how Estelle was so strong against a literal demon girl and that she thought this situation was, quote-on-quote, scary? Well, maybe I shouldn't sweat the details so hecking much xD.

Something such as "(Giggles with glee)" is cute, but it doesn't really fit in a light novel :P. Maybe if you were roleplaying

It was a pretty interesting first chapter. I already kinda know what for setting you were going with, but I'm pretty excited to read the rest. Although, there are some things in your writing style that felt a bit.. off-putting. To start off with, almost every new (inner-)dialogue starts with a "[name] said/thought" and it's alright to use that, but only using it not that much. Some points where I kinda got confused with what perspective you're writing with. It started with a narration of Estelle and then it gradually went to a omniscient reader's viewpoint (we could see their emotions when they spoke/Estelle's thoughts), but it was a lot of telling and not "showing" in my humble opinion. And well, apparently there's a narrator; the father? I didn't expect that, but hey, this might become very interesting in the near future. Sorry for this micro-essay for just chapter one, but there were some thoughts I wanted to get out there xD. I probably won't type this much under the following chapters,

The name Marisa wasn't mentioned yet, but it already says "Marisa said" before establishing that name through an observation/dialogue.

So the reason for her wanting revenge is, because her parents were killed, huh. That's all fine, but to me, this "prologue" felt a bit rushed? Like Estelle skimmed very quickly over that (traumatic) night her parents were killed IN FRONT OF HER. Just sayin' xD.

Wow that escalated very quickly!