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25 Days of Sinsmas 2025 by RavenDragon643
Fandoms: Helluva Boss (Web Series), Hazbin Hotel (Cartoon)
14 Dec 2025
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Summary
Another holiday year of chaos with the Hazbin Hotel crew and the Helluva Boss crew.
Day One: Hogwarts AU
Day Two: Twining
Day Three: Angel’s Presents, (To The Max)
Day Four: Loneliness (Octavia)
Day Five: Sweaters (Niffty and Baxter)
Day Six: Reindeer Games (Alastor and Lucifer)
Day Seven: Snowman (Spider siblings)
Day Eight: Wicked AU
Day Nine: Morningstar Reunion
Day Ten: Heaven (Andy Grin)
Day Eleven: Human AU
Day Twelve: Caroling
Day Thirteen: Voxmas (The Vees)
Day Fourteen: Comfort (Blitz and Stolas)
Day Fifteen: Christmas Photos (Charlie and the others)
Day Sixteen: Getting Inventive (Alastor and Vox)
Day Seventeen: Spirit of Wrath (Millie and Moxxie)
Day Eighteen: Disney AU (Cinderella, Husk, and Angel)
Day Nineteen: Burgers (Fizzarolli and Asmodeus)
Day Twenty: Molting Season
Day Twenty-One: A Trustful Transaction (Kara and Velvette)
Day Twenty Two: Secrets of Millie
Day Twenty-Three: Molly and Thorne
Day Twenty Four: An I.M.P Christmas Eve
Day Twenty Five: Christmas Morning at The HotelSeries
- Part 10 of Helluva Boss/Hazbin Hotel Shorts
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Summary
Lilith and Lucifer had never planned to have any more children after the arrival of Charlie, so when Lilith suddenly falls pregnant again it is quite the shock.
“We’ve been so careful for the last 185 years, how could this happen now?” Lilith mumbled into her hands as she hunched over herself.
“I guess fate made the decision for us?” Lucifer said with a nervous laugh, earning he ire of his wife.
(In other words, the first of a line of stories I want to write regarding my OC named Morgana Morningstar, the younger sister to Charlie. This story covers the family discovering that Lilith is pregnant and what happens when she goes into labor)Series
- Part 1 of The Adventures of Morgana Morningstar
- Language:
- English
- Words:
- 3,278
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 39
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Endstation Pride-Ring by Trios
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
14 Dec 2025
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Summary
Die Höllengeborene Rachel wurde vom Ring der Trägheit, von Belphegor persönlich, in den Pride-Ring geschickt. Die vermeintliche Beförderung ist für sie ein Alptraum, als sie den Befehl bekommt, im Dienst eines mächtigen Overlords zu treten, dessen Ruf in der ganzen Hölle bekannt ist. Rachel macht sich auf das schlimmste gefasst und plant bereits eine Flucht und Untertauchen unter anderen Namen. Bis sie erkennen muss, dass die Aufgaben die ihr anvertraut werden, so gar nicht zum ältesten und gefürchtetsten Overlord zu passen scheinen. (Spielt zwischen den Kapiteln von „Endstation Limbus“)
Series
- Part 2 of Endstation Hölle
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Summary
It's almost Christmas, the most wonderful time of the year... at least until Adam receives a shocking call from someone he'd rather never see, revealing an extraordinary secret and asking for his help to save Christmas. Thus, Adam finds himself caught up in a truly absurd situation, one he's forced to drag Charlie into, since she seems to be the only one who can truly help him and Lucifer. The goal? Transform the whole Pentagram City into Santa Claus's town, and above all, ensure no demons try to eat the children. All this while the unlikely members of this crazy team must do their best not to go mad, which is no easy feat. And also to refrain from beating up those responsible for this mess.
This is the unofficial sequel to the story "How the legend of Santa Claus was really born". If you haven't read it, don't worry; the gist will be explained. However, I recommend reading the other one first, especially since it's very good and just a one-shot, so not even too long to read.
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Summary
After being used as a battery in Vox's "Might of Lilith" machine, Lucifer wakes up sick, weak, and experiencing changes to his body he can't explain.
When Alastor volunteers to monitor his recovery, neither of them realizes that a moment of unconscious contact during their rescue has resulted in an impossible consequence.
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Summary
It’s been one year since Judgement Day. Heaven and Hell have been working diligently together to help sinners find redemption. Things couldn’t be going better for Charlie and her family and friends. Or so it seems…
Lucifer still struggles with his inner demons. Old foes are working behind the scenes to sabotage the Hazbin Hotel. Alastor has a secret with potentially cataclysmic implications. And an ancient evil has returned to destroy the cosmos once and for all.
Final installment of the Angel in Hell trilogy.
Series
- Part 3 of Angel in Hell Trilogy
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Step into colossal diviniti Velvette by navez1114
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series), Cthulhu Mythos - H. P. Lovecraft
14 Dec 2025
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Summary
Velvette get power to change Hell and rule everything she wanted as gigantic goddess of hell. Velvette conquer Hell and took final victory, but fate have other more murderous plans for her.
Series
- Part 1 of good and bad goddess Velvette
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One Helluva Team (Harbin Hotel + Helluva Boss OC Story) by GrimstoneRX1300
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
14 Dec 2025
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Summary
There are millions of people in Hell scattered throughout the seven rings and nine circles. Some are sinners, some are Hell-born, and some are unlucky souls who got screwed in the living world.
Luke Morningstar works at his family's hotel to rehabilitate demons, Osric Ga'Hoole is a bodyguard for the Ars Goetia, and Vicious Brawnstone works with a famous pop star. The three have these jobs while working for an imp known for a hired killing business. Coupled that with the rest of Hell, there's definitely not a boring day in the life of chaos and mayhem.
These are their problems.
OC x Loona
OC x Octavia
OC x VerosikaAnd a lot of Letterkenny/Shoersy references.
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Summary
“Oh, you have power, alright,” Lucifer manages. “Just not that of a king’s.”
“Oh yeah?”
Vox squeezes harder. He swings his free hand out as static crackles, forming into a sharp blade that he inch closer to Lucifer’s throat.
“What’s the difference?”
Lucifer chuckles. Mortals are so easy to rile up.
“Presentation.”
Or one where the Sins arrive at Pride during the finale. (Cos we need more of it)
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Summary
After the war in Hell, Lucifer and Alastor were happily married and had decided to have children together. But what happens when their littlest star becomes lost?
This is the story of the youngest Morningstar, Lucielle Altruist Morningstar, who was raised in a place they don't truly belong. Will they make it home alive with their parents? Or will they sacrifice everything so they don't have another war?
No smut
Asexual Alastor
Pan Lucifer
Michael isn't a Dick
Transgender OC/ Lucy becomes Lucielle -
Goetia Princess' Hotel! And the Radio Boss! by PastelerKnight
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
14 Dec 2025
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Summary
Princess Octavia Goetia has opened a hotel to orove to everyone that sinners can be rehabilitated.
Meanwhile, the Radio Demon, Alastor, has decided to open an asassination company.Series
- Part 1 of Goetia's Hotel/Radio Boss fanfictions.
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BA: Sidestories by LordKonkon357
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
14 Dec 2025
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Summary
With Vox defeated, and the hotel finally getting residents for the right reasons. You can finally get that peace you wanted and have more time to explore and develop your and Lucifer’s budding relationship.
A series of oneshots set in the BY ASSOCIATION AU. Requests Open.
Series
- Part 2 of By Association AU
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Break My Chains by Mis_BUBBLES
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
13 Dec 2025
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Summary
He was raised to kill a king. Trained in silence. Forged in shadows. His mission was clear, until the man he was meant to destroy became the one person he couldn’t bring himself to hurt.
Now, caught between a duty he cannot refuse and a love he never meant to find, Alastor walks a blade’s edge. War brews on the horizon, Heaven watches from above, and deep beneath it all, the strings of an unseen master still tug at his soul.
In a hotel built on hope and haunted by secrets, one wrong step could tip Hell into ruin. And this time, love might not be strong enough to save them.
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My Mommy is a Princess: Prologue by Bunnygirl_94
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
13 Dec 2025
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Summary
Charlie never planned on becoming a mom in college—but Hell had other plans.
A botched summoning. A murdered child. A fate that should have ended in blood.
Instead, Charlie Morningstar finds herself dragged into the aftermath of a failed cult ritual—bound not to a power-hungry sorcerer, but to an innocent baby who never should have died. Faced with heartbreak and fury, Charlie does the impossible: she reshapes the contract itself. Not into ownership, but adoption. Not chains, but family.
Now burdened with the unthinkable, Charlie must raise little Alastor in Hell, carrying both the horror of his death and the fragile hope of his second chance.
This is the story of before—before her lifelong partner, before the dream of the redemption hotel. Back then, she was just a college girl juggling textbooks, coffee, and student life… until fate handed her motherhood in the most unlikely way.
The prologue of My Mommy is a Princess AU: a young princess who chose to become a mother, and how love can bloom even in Hell.
Series
- Part 1 of My Mommy is a Princess AU
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Summary
Alastor may not like Lucifer, but drugging him was never part of the plan—until Lilith forced his hand. The pills don’t strip Lucifer of his essence, nor do they harm him in any way. But they do leave a new person in their wake: a confident, calm, and composed King of Hell. Unburdened by fear, doubt, and struggle, this version of Lucifer is everything he could’ve been. But how would the others react to this new Lucifer? A Devil unchained from his demons, stepping into the unknown?
Read to find out!im so sorry its been so long since i wrote anything
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SPY x FAMILY (Hazbin's Version) by Anthoskuu
Fandoms: Hazbin Hotel (Cartoon), SPY x FAMILY (Anime)
13 Dec 2025
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Summary
Alastor, a spy for WISE, codename: Radio Demon, must set peace between Westalis and Ostania. And to do that, they initiated operation Strix, and now he must make the perfect family and perfect image to get close to Adam Desmond.
But a spy has their own weak moments, does Alastor truly care about his forged family?
(Hazbin Hotel SPY x FAMILY AU)
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The Scent of Roses and Espresso by Iron_Tony604
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
13 Dec 2025
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Summary
Lucifer is a detective, tasked to find the mysterious vigilante leaving criminals wrapped up like gifts at the crime scene. His favorite time of the day is stopping at the Coffee Shop down the block. For the coffee of course, not because of the attractive Barista working behind the counter.
Alastor just wants to do what‘s right - but the bloodstains on his hands are something that he‘d rather forget.
Love was never part of the plan, but then again, neither was redemption.
(Or the weird Coffee Shop/Mafia AU no one needs and I wrote anyway)
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World of warriors by One_ficc
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
13 Dec 2025
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Summary
You save the world because you are a hero or you are a hero because you save the world
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decisions and consequences by Chisse08
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series)
12 Dec 2025
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Summary
Lo que ocurre después del secuestro de lucifer por parte de los v's
Series
- Part 1 of 6
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Summary
Famed architect and daughter of the city's mayor, Lucille Morningstar recently separated from her musician husband due to circumstances yet to be unveiled by the news. Disowned, divorced, disinterested in life completely, she almost gives up entirely until she meets an illustrious radio hostess with a dark secret.
Practically down on her knees and begging, Lucille is desperate but fortunately for her Alice is sympathetic to her plight and takes on position as housekeeper - a perfect ploy to get more kil- sorry, "clients", in the bag. Besides, how could she let a poor heavily pregnant woman be so distraught like this?
Series
- Part 4 of Murder and Rehabilitation
- Part 1 of The Apple of Her Eye AU
- Part 3 of Radioapple and There After