Undertale-multiverse Stories

Au's aren't meant to collide. the seasons, in an ideal timeline, would never have met at least not this way. in the ideal world, Summer would still think that there was only 1 sans. in an ideal world, he would still have his Papyrus, and so would Winter, Autumn and Spring. they wouldn't even know the other exists. In the ideal world, Summer would still be wondering if the theories were correct, wondering if there was a bigger multiverse out there. but this isn't the ideal world. it stopped being that the second the worlds ran into each other, killing everyone but Sans. well, four of him, actually

A story following the Royal Scientist Emily Gaster, the daughter of Wing Ding Gaster doing experiments and her life in the underground before the destruction of her AU because of the subjects she had hidden deep in her labratory. This is the prequeal of the destruction and chaos that will befall to anyone when this story ends.

I don't know what I'm doing, so have some ideas. Undertale multiverse(s)! I prefer FGoD Error and Papyrus-roles, but there's probably going to be a fair amount of variety. If you manage to find this, feel free to give requests. Know that I'll probably stare at them for a while, maybe come up with an idea or two, and then completely forget to post them. Hey, maybe there'll even be a plot!