Mmm a crowded Library, my favorite! *sobs*

I see lots of "What if these characters from different fandoms with stuff in common lived in a house?" And I personally really like those, but I like a lot of characters and wanted to use a bunch of em and thought "What if a bunch of characters I like all got randomly teleported into the Underground from Undertale and had to interact?" So here you go!

(Also- the MC may be the same for a while then randomly switch to another person out of nowhere- It's mainly just who I like the most at the time so- hehe-)