Memories, rebirth, and magic? Okay then... (Undertale fanfic)

After finally getting to the surface again, everyone thought it was all clear from there. Well tell an accident kills frisk (cuz I am a jerk okay!) and leaves the group devastated. Frisk promised Sans she wouldn't ever reset again no matter what, and she kept it. But he was the most recked by her death, and foolishly made a machine to reset time back to the start in hopes of saving Frisk. But things seemed off? Had he really messed with the code this much to unlock a secret no one knew was hidden. (Also Gaster is back cuz I said so and is sans and papyrus' dad cuz why not? Warning slight Toriel x Asgore cuz they probably wouldn't have split if human's weren't killed)This is based off of some really dumb theories and fancanon's I have... Pretty much the idea is that Chara and Frisk are reincarnations of two sides of the red soul from the monster war? And so is papyrus for the orange soul and sans for the blue? The reason I will probably explain in a chapter?

So I added something's to this chapter hopefully it makes it look less rushed XD I want to describe the death scene but I'm nite sure if I want this story to be rated M for the gore I wish to put that is in this au XD so I will decide later!