Disclamer : I'm warning you right now. In case the image is too subtle. This is a Hazbin Hotel/Kamen Rider Revice crossover. So there's going to be a lot of swearing, serious themes tackled, and profanity, so kids if you were about to read this... go get a beer.

I'm not going to tell you to read anything else, you won't. ^^

It all started with the Deadmans' first real assault. Many outside Fenix's research department, but when he was purifying the Vistamp, George Karizaki wasn't alone. He was accompanied in this task by someone he supported. A young man in apprenticeship who had to occupy an ill-regarded post: that of intern.

His name was Gabriel Reignoux. He was a Frenchman, standing 5,57ft tall, with medium-length black hair and blue eyes. But often in this country, thanks in part to a certain despicable American youtuber, he was better known as a Gaijin.

Luckily, unlike most interns, especially those of his ethnicity, George didn't just explain things to him quickly and leave him to cope with the unglamorous tasks. He did things in pairs. The young man's thirst for knowledge reminded George of his early days with his father. His interest in the scientist's innovations also flattered his ego, but nobody knew that.

His internship came to an end during the attack on the Deadmans' base, and he took advantage of the fact that George had gone there to copy all George's research data onto one of the hard disks he'd taken with him.

He had no intention of stealing them from George, far from it; he was just looking for something to pursue on his own, dreaming, like George, of creating his own Kamen Rider.

When he finally left the Fenix base, after greeting George, he came across the team in charge of bringing in Giff's Coffin. This awakened something in him that he didn't realize at the time. Something dark.

But it didn't stop there: he was approached to join Weekend, a secret organization with the same goal as Fenix. He worked for them this time, assisting their leader: Masumi Karizaki, George's father.

Masumi taught him more about the design of Vistamps, and when George joined the organization he taught him even more, including how to design safe Demon Drivers without the setbacks of the first. And after designing several for Weekend soldiers. He left the organization for fear of being targeted by Giff's demon followers.

But he didn't leave empty-handed: he had copied the development data and plans of all the Drivers and Vistamps in the Weekend database, from Karizaki father and son, as well as enough material to design the Driver he wanted to create without them realizing the missing resources.

It was complicated, but he brought a duffel bag with the excuse that he was going to spend all night at HQ to make as many Demon Drivers as possible before leaving. All he had to do was put the stolen equipment in his bag with some clothes over it to conceal it if anyone decided to open it afterwards.

He had doubts about the morality of his actions. But then a voice spoke to him, motivating him to continue.

But Gabriel's interactions with Kamen Rider and the demons didn't stop there. Just as he was about to board a plane for a well-deserved vacation after all that, before returning to his homeland.

But the plane was hijacked by an armed team intent on kidnapping two people: Genta and Yukimi Igarashi.

Luckily, he was able to sneak out of the plane and hide, until he saw... Kamen Rider Revice.

Or so he thought, but this rider was different. He looked like Revice, but he was different. He did, however, recognize the Vistamp at his waist as a modified version of the Thunder Gale Vistamp.

The situation was resolved the next day, but Gabriel couldn't stop thinking about this Vistamp, and after seeing what it could do in action, he wanted to create one just as powerful. And that voice in his head wanted that power too.

This brings us to the present.

He was back in his native America, in the house his parents rented for his studies.

He'd just finished developing the Vistamp he'd been dreaming of ever since that botched vacation.

At last, it was being finalized, and the rider data was being uploaded. In appearance, the Vistamp was identical to that of the Revice form he had observed, except that the blue had been replaced by red.

It took him the whole first semester to work on it in parallel with his studies, but he had finally succeeded.

But that wasn't all, for at the other end of the room was another computer finalizing his Driver.

It was virtually a copy of the Revice Driver, except for the color scheme: the dark blue was black, while the light blue and pink were red. The Tail Grip was red, as were the cyan parts of the Driver. The Vistamp Go Slot was grey with the 5 in red, and the Ohinjector was already in the active position, revealing a screen instead of the tray where the Vistamps were stamped.

He was glad to have finalized them last night. After all, it wasn't just any night. It was Walpurgis Night. A night identified with the witches' sabbath, and therefore with black magic and the devil.

Putting on his lab coat to look more professional, he switched on a tripod-mounted camera and started recording.

"Gabriel Reignoux, entry number 54. After almost... I've finally got it finished! My own driver and Vistamp. I'd like to thank Professors Karisaki, father and son, for teaching me their knowledge. Now it's my turn to create a Kamen Rider." He gloated, his voice sounding like Peter Parker's in the French dubbing of Insomniac Games' Spider-Man, as he placed the driver at his waist, causing a strap to spring up and secure the object in place, and a voice to emerge.

Revixe Driver!

"Now all we have to do is carry out the final test... if all goes according to plan. So... fingers crossed." He said, as he crossed his fingers in front of the camera.

He then picked up the Vistamp and activated it by pressing the button, spinning the silver propeller inside, which made the voice speak again.

Revixe Gale!

He then applied the Vistamp to his heart and inserted it into the Driver, pressing the button a second time as the waiting jingle played.

Revixe Gale! Come on! Revixe Gale! Go! Go!

He then rotated the part to which the Vistamp was attached, which returned to its original position as soon as he released it, while the black screen on the side revealed a slightly closed red demonic eye.

Tornado Up!

Suddenly, he felt a sharp pain run through his body as black sparks emitted a red glow.

He gritted his teeth and grimaced in pain before it was so strong he screamed before a red light engulfed him and made him disappear from the room.

When he awoke, he was in an unfamiliar place. It looked like the street of a big city with a red sky, and he was leaning against a garbage can next to... a corpse.

It was a woman with a slender figure, lavender-gray skin that didn't fail to disconcert him, grayish-white hair cut to a bob. Her right eye was closed, while her left was... empty. It had been punctured and torn from its socket, from which a golden liquid seemed to have flowed abundantly.

Was it this woman's blood? Had she hemorrhaged to death? Why was the blood golden and not red?

His scientific curiosity got the better of him, and he took a vial out of his lab coat and filled it as full as he could with this golden blood, to study it when he had the time and the means. He then noticed that some of the blood was also running down her back, where there were two large gashes as if... a pair of wings had been cut off.

Was this woman an angel? If so, who could have done this to her? Who could be barbaric enough to gouge out her eye and then clip her wings... or the other way around?

As he put the vial away, wondering more and more, he looked up to see... a gigantic pentagram.

"The test... it messed up... but that red sky with that pentagram... did it send me... to hell... No, no, no! It can't be true! A nightmare! The driver or the Vistamp screwed up and just knocked me out. Yeah, that's got to be it! It can't be anything else!" He thought, taking his head in his hand and looking at the ground, trying to deny reality as he began to have a panic attack.

Just as he was completely overwhelmed by the situation, someone stepped in front of him.

He lifted his head slightly to see her, and despite her humanoid features, he was obliged, given where he stood, to recognize that in front of him stood a demon. A real demon, not the inner demons Fenix and Weekend had been fighting. But this demon didn't seem as monstrous as what he'd seen from Giff.

She was a tall, slim and beautiful young woman with white skin, looking at least 0,33ft taller than him. She had long, ankle-length blond hair with fine, light coral highlights over paler blond highlights, which was tied back in a low, two-band ponytail by two black hair elastics. As well as a fringe that was flipped to the left side and ended in a curl.

Her eyes had a light yellow sclera and red pupils. She had thick lashes and gray eyelids, black lips and rosy-red cheeks. She seemed to have animal features, such as a black, animal-like nose, and potentially something else hidden. Her nails were black and pointed.

From what he could see, she was wearing a red tuxedo with a long-sleeved, high-necked white shirt underneath, not tucked into the pants, and a small black bow tie. Her pants were a slightly darker shade than her jacket, and her shoes were heels, white, with black toes and heel tips.

The demoness had crossed his path as she walked down the street looking for someone in need.

And there she'd found him, seemingly starting to have a panic attack. Seeing a human alive and well here was surprising enough in itself, but seeing him in this emotional state made her sad.

So she approached him.

And she took five more steps, her hand raised to touch one of his forearms, when Gabriel began to speak.

"What do you want from me... do you want my soul?" he asked in a small, almost terrified voice.

The demoness stopped. Many people in hell had pushed her away, insulted her or outright attacked her out of sheer disgust or hatred.

But no one had ever asked her that question.

Then again, it must have been because this was a human experiencing something never seen before. He must have been more terrified than she imagined.

So, with the confidence of a mother reassuring her child, she had completed her action and let her hand rest on his forearm.

He tensed, but said nothing as slender, delicate fingers gently caressed his skin through the gown the human wore.

"Of course not. I'd rather try to help you." She said as, without realizing it, Gabriel noticed her fangs in her teeth as she spoke.

"H-How can I believe you?" He asked, showing his distrust despite his fear.

His statement combined with her tone definitely reinforced the demoness' hypothesis when the human raised his head, his blue eyes meeting her own red ones.

His face had captivated her for a moment. On the one hand, she felt like recoiling in surprise at his definitive human features. She had indeed seen what he was, but it was still a surprise. Especially as no sinful demon had enough human features to resemble one, there was always something to betray their true nature.

On the other hand, she found herself surprised by the beauty of his features. His mid-length black hair now chaotically entered his face. His fair skin, indicating that he didn't go out much, the absence of a beard.

But after a moment's observation, the demoness gave a small smile and slowly got to her knees. Despite the fact that she had brought herself down to his level to put him at ease, the human's eyes were still full of fear and mistrust. And yet, she wanted to show that she meant him no harm.

"The devil doesn't lie. Why should his daughter?"

Gabriel's eyes widened in surprise, his jaw opening slightly.

The demoness sat there, a little saddened, as she prepared for him to push her away in turn. To tell her he didn't want help from a monster.

After all, he was human, and to humans, demons were monsters desiring their souls and tormenting them for it.

But then she felt surprised when she saw hope in his gaze, the way his eyes seemed to light up with relief.

His expression seemed reassured, but still as cautious as before.

"You... you really mean it. You're not just going to make me let my guard down and then, once I'm out of sight, kill me and take my soul."

The demoness did her best not to laugh, but it seemed so far-fetched that she couldn't help herself.

Her laughter soon became infectious for Gabriel, who laughed back, finally relaxing after realizing what he'd stepped into.

Now more relaxed and at ease, the human realized that this demoness seemed more trustworthy than one might imagine from a demon in the biblical sense of the word.

But the Bible seemed very susceptible to bullshit. After all, religions describe it as a hellish place where we burn for eternity, tormented for our sins. But what he saw was more a version of his world, with red sky and anthropomorphic people who could look like anything.

"I am Gabriel Reignoux."

It was the most progress she'd ever made with someone she'd tried to help. And it was just an introduction, that was the sad part.

But even so, she stifled her enthusiasm. She didn't know what had brought this human here, to hell, and she didn't want to spoil that progress.

Nevertheless, she let a joyful smile take over as she reached out and placed her hand in his.

"I'm Charlie Morningstar."

And that had been the start of something Charlie and Gabriel had never imagined.