WARNING OC x CANON NONSENSE
In the worst of the winter I would think about this oc/self insert x Underfell Papyrus au to go to sleep...then I started doodling about it in class... I even wrote like 1,200 words about it...
First off a drawing of Toriel because you meet her first :)
boiled down it's a scar soulmate au for Underfell where I imagined basically everything but the two characters meeting lol. Slow burn has nothing on me, what if the characters just never met •ᴗ•
It starts with the main character waking up in the underground as a cat monster and basically just staying with Toriel as her child to avoid conflict. But when Toriel describes the magic soulmate scars on MC to the voice on the other side of the door, someone gets suspicious and decides they need to pay a visit and see for themselves. I imagine sans would have to trick Toriel into letting him visit which would shock MC (I'll think of a name ummm,,, never sorry) and then sans would also be unnerved because he does recognize the scars, actually he sees them every day (cough cough papyrus' scars cough cough). This would then lead to a lot of hi jinks of sans trying to get Toriel to let MC into the underground, so his little brother can meet his soulmate, Toriel having none of it because why would she let her child leave and get killed, and MC being confused as to why this skeleton flirting with her pseudo mom has anything to do with her (yes there is soriel in this au I just think it's sweet, also the soulmate thing isn't necessarily romantic and also not everyone has a soulmate mark in the same way (๑•᎑•๑))
Here's a comic of sans and MC meeting
I think eventually sans convinces Toriel to create a "mailbox"-esque system to the ruins. Papyrus and the MC become pen palls which allows both characters to be more vulnerable. With them being such good friends now sans and Toriel are a little less stressed and they start forming a relationship! Which would probably lead to everyone meeting but who's to say ¯( ⏑‿⏑ ) this au was mostly an excuse to explore a character who is fine staying in the ruins with Toriel and soulmates because they help me sleep at night (ᴗ˳ᴗ)ᶻ𝗓𐰁












