A Undertale/Hazbin Hotel AU I was keeping in my folders. I was waiting cause I wanted to draw other characters too but I got lazy.
Basically they take some of the roles in Undertale, but I've changed a lot of the implications to make it fit their characters.
Alastor would be the first monster Charlie encounters. He's a combination of Toriel and Flowey, acting friendly and fraternal but secretly plotting against Charlie about ways to get her soul, since he knows she can go back in time to save herself. He doesn't confine himself to the ruins, he'll follow Charlie through the whole underground, mysteriously appearing whenever she needs help.
Husk is more similar to Sans. He knows Alastor, they met at the door to the ruins, they're not friends tho. Still deciding if monsters in this AU make deals but you can assume Alastor has him threatened somehow and makes him work for him, since Husk has connections to the royal guard as a sentinel.
He lives in Snowdin and is neighbours with Angel Dust, the celebrity (not sure about making him a porn star here). They meet at the bar regularly and Angel always tries to flirt with him, to his annoyance. They become closer and Angel even gets him to do some magic shows at the Hotland hotel. The hotel belongs to the Vees and Angel would be under Valentino as his manager or something. The role of Mettaton is divided between the three Vees and Angel Dust as they use the fallen human to create clout in the media, though Angel also takes some things from Papyrus.
Sir Pentious is a lonely scientist like Alphys, obviously, and he's obsessed with making weapons for Cherri Bomb, a member of the royal guard (she'll change her mind and help Charlie btw). Romance muah muah muah blah blah blah.
Adam would be the leader of the royal guard. Nobody -besides his lieutenant- likes him, but his power and position is indisputable. Him and Lute hunt Charlie mercilessly to try and collect her soul.
Niffty is, like, around, idk. Maybe she lives with Alastor in the ruins and helps him.
Vaggie would be a monster kid being trained by Lute to become a royal guard too. She super gets along with Charlie, and you know the rest. I guess she would take some of Monster Kid's interactions.
About Lucifer and Lilith as the royalty and their relationship with Charlie... that's where it gets complicated. Can't unfold my ideas about it so if you think of anything share it!
