A broken promise between two can effect quite a lot more. But who's to blame when control is in the hands of no one?
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That should have been where it ended.
After 23 resets, 5 of them being True Resets, after 12 total runs were completed, after all the secrets were uncovered, after everything was tried, Frisk and Chara were done. The only thing they hadn't done was get above LV 6 during a run. Neither of them were fans of killing- The run they got LV 6, it was while they were in Waterfall, Frisk felt so guilty they Reset right there- So they never did it much before figuring out sparing everyone resulted in another, better ending. And that was the ending they had now. The monsters were free, coexisting peacefully with the humans. There would be no more resets, Frisk and Chara agreed to this.
But apparently, someone else had other plans.
When a sudden reset throws everything haywire, Chara finds themself back in the Underground, just woken up by, and now forcefully attached to, Frisk. Only something's wrong. Frisk isn't acting as normal. On top of that, something is horribly wrong with the whole Underground. Thing's aren't what they were, and Frisk seems to have something to do with it.
Chara's determined to figure out what's wrong with Frisk and the rest of the Underground and fix it, set things back to how they were. But the longer the run goes on, the more pieces start to fall into place, and Chara starts to realize- this may be completely out of their, and Frisk's, control.
Start Date: 19/02/22
Routine.
The entirety of every living thing is dominated by it, human or monster. Everything HAS to be the same. It was in this that you were the exception.
For you everything was new, every time line a detailed altered in order to satisfy your sadistic desire for a new ending, whether it be only a few details of dialogue altered or something else entirely. Monsters you once considered family you now butcher and slaughter without a second thought, after all, that's what the Reset is there for, right?
And all at once it stops.
Your small hold over the Underground is ripped away from you and you are thrown into a dying timeline, monsterkind's final attempt at self-preservation.
You're alone, completely and utterly alone.
Except one.
And he has a bone to pick with you.