According to several wikis, these are the morality of the Undertale/Deltarune characters: : r/Undertale

The Insert Credit Show

_ゝ｀)ehh?! — Sans is a Darkner Theory (Debunk), Monster

Undertale scenarios - In regards to sexuality and mental health (with Deltarune) - Wattpad

Undertale Know Your Meme

Did you like Undertale or Deltarune better? - Quora

Undertale - Yes Homo: Queer Webcomic Reviews

Undertale Delta Rune - Colaboratory

I know I'm not the only one who's noticed that Papyrus is the only character who isn't morally tainted or controversial in the slightest. : r/Undertale

But he grows lonely in his little freedom… Undertale funny, Undertale, Undertale fanart