[Discontinued] Were We Doomed From The Start?

What started as a joke with a friend of mine, teasing him about random bs ended up with a full-time thing I do now, having come up with the idea that all this is canonically accurate...?

So, this is a fanfic that tells such a wild story, happening in a timeline close to Undertale, but unfortunately not a self insert [sorry to all those who hoped it would be]
Venture through the Underground encountering monsters, watching our main three be subjected to all kinds of tomfoolery, chaos and spooky moments! Biggest spoilers of your life for the game, beware.
Enjoy, because holy hell at one point it stressed the f out outta me
[Oh yeah, no smut. The "Mature" is because I read the guidelines and decided to add it]

Warnings:
-Okay a reasonable amount of death I think
-Only a few moments where you should be like "tf?"
-Kinda silent main character ngl
-It gets darker as you go on, trust
-Cursing, as with many things now
-I sound highly unenthusiastic at one point
-Just a lil bit of sad moments
-Still some occasional fluffy cringe
-Random immense detail at times