In this AU, Frisk fell into the core and gained the ability to be in any Undertale timeline/Alternate Universe that she wants.
(She might even have to take this thing with her-it might be useful!)
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Undertale AUs (in my opinion)
RandomHi! This is a random idea I came up with, and in it, I'll be listing every undertale au I know of, and (at least) every main character within them. In my point of view, of course. If anyone wants to share their views on any of them then fine by me...
