Vivienne Medrano begins developing the concept and story for Hazbin Hotel.
The official pilot episode of Hazbin Hotel is released on YouTube, gaining significant popularity.
The pilot episode receives widespread acclaim for its animation style, characters, and music, leading to increased attention.
A24 announces that Hazbin Hotel has been picked up for a full series, marking a significant step toward production.
Princess Charlie Magnificent opens the Hazbin Hotel as a rehabilitation establishment for demons, aiming to reduce overpopulation in Hell by redeeming souls.
Angel Dust, a spider demon and former adult film star, arrives at the Hazbin Hotel seeking redemption and a fresh start.
The Radio Demon, Alastor, approaches Charlie and offers his unique and powerful assistance to revitalize the hotel and its cause, albeit with his own mysterious motives.
Vaggie, Charlie's girlfriend and a fierce protector, takes on the role of hotel manager to maintain order and support Charlie's vision.
Husk, a grumpy feline demon and gambler, is recruited to serve as the hotel's bartender, contributing to the hotel's daily operations.