Meet Nico. One minute, she's blacking out, which is typical for her, until she wakes up in Hell. Before she knew it, she stumbled into a sticky situation, which would've been the end of the line for her if it weren't for a certain infamous actor who welcomed her into his family. Now, she and he are as thick as thieves and live in the Hazbin Hotel, run by King Lucifer's daughter, Princess Charlie Morningstar, and Charlie's girlfriend, Vaggie. One day, the four of them return from work, war, and an interview to find Alastor, the infamous Radio Demon Overlord, looking for something 'entertaining' to keep him busy. While his methods may be shady, Charlie accepts his help, and the real work begins. The following is a 'Hazbin Hotel' x OC insert; All characters, excluding the OC belong to the creators of 'Hazbin Hotel'; For the sake of avoiding copyright infringement, some scenes will be revised and/or removed to signify the differences Nico's presence creates.

(Story for ages 18 and up) Kai Maximov and Angel Dust have been neighbors-literally across the hall from each other-for two years. And to say they don't get along? That's putting it mildly. Kai, Hell's top hitwoman, is quiet, reserved, and deadly serious-unless someone pisses her off, in which case she can get dangerously unhinged. Angel, on the other hand, is loud, shameless, and perpetually surrounded by men, constantly harassing Kai for his own amusement. So what happens when Angel is dragged back to the Hazbin Hotel-and Kai, unwillingly, has to follow him-forcing them to spend time together? Can Kai survive the chaos of Angel's world while hiding the dark, violent past that landed her in Hell? And can Angel handle the secrets, the scars, and the hidden strength of the one neighbor he never thought he'd care about... until he starts feeling something he's never felt before? A story about enemies, unexpected connections, and a romance that's as chaotic as it is darkly funny. (There's a bit of a Bendy and the Ink Machine crossover here, for Kai's backstory. I own none of the characters aside from Kai Maximov.)

Vaniquette, a sinner that died in the 1980s, is a pyromaniac/arsonist obsessed with bombs and looking amazing while doing turf wars. When her territory gets destroyed by her best friend Angel Dust, his friend Cherri Bomb, and Vaniquette's self-proclaimed greatest rival Sir Pentious, she coerces Charlie and Vaggie into letting her stay at the hotel. While staying there with Angel, she meets Alastor, Husk, and Niffty as the seven work together to run a hotel to rehabilitate sinners.