Never though I'd get around to actually making a Helluva Boss story, even if it's a crossover, but here I am making one. I mean, I didn't take much interest in either Helluva Boss or Hazbin Hotel until a couple of months ago when I heard about it, and decided to see what it was about. So I watched both shows and I'm really glad I did.

So, it was only a matter of time until I felt like making a story about either one of them, and it just so happened to be Helluva Boss. Though, that is the first one that I watched, so it felt fitting and right.

But anyway, welcome to Helluva Spawn, a Helluva Boss/Spawn crossover featuring my OC Nathan Nolan AKA Spawn getting involved with the I.M.P. crew in their business of killing humans. And as time passes, Nathan finds himself falling in love with Loona, and later Verosika Mayday. yeah, this is an OC x Loona x Verosika Mayday pairing.

This will have the themes you expect with Helluva Boss and Spawn, though the seriousness from the Spawn side will be maintained. I mean, do you see anything humorous or comedic about that guy?

Disclaimer: I do not own Spawn or Helluva Boss. I only own the OC Nathan Nolan/Spawn.

No one ever expects the day when their lives are forever changed. There are some of those who try to reject and fight it, and then there are those who welcome and embrace it. It usually depends on whether the change is good or bad, but neither assures what the reaction will be. They either reject or welcome it by what they endured through in the past or what they might be preparing for in the future.

For Nathan Nolan, everything changed the day he and his family were murdered by scumbags and he made a deal with a demon to become a Hellspawn to get his revenge.

People should forget what they think they know. Hell is real. There are no words that can describe it. Movies that retell the horrible stories of this accursed place could never hope to do it justice. It is a place beyond human understanding. It goes beyond concept and thought. If a human were to gaze upon it, weak of mind and spirit, their eyes would surely boil and burst into gooey remains.

Heaven is real. It is a paradise that one cannot begin to comprehend. A shining city among the stars, celestial hosts flying about and bringing order to it. However, such grand splendors are not without dark reflections. In the reflection, a dark face is revealed. One veiled by beautiful concepts such as "justice" and "righteousness." What mere mortal could ever hope to comprehend the minds of such great beings who perverse these meanings?

Demons are real. Angels are real.

And Nathan Nolan was an enemy of both Hell and Heaven.

Heaven hunts him.

Hell hates him.

All of Creation would care not if he lived or died.

That was just fine with him, because he didn't care about them as well.

He was a soldier. A husband and a father. And when he died alongside his wife and kids, he made a deal with Hell; become the general of the demon's armies and a Hellspawn, and in exchange he will get his revenge on the ones responsible for killing him and his family. Nathan very much agreed to those terms.

The things people will do for love.

And even when Nathan got his vengeance and avenged his family's deaths, he was left with nothing but the darkness that now dominated his life. There was satisfaction at the fact he had avenged them and that they could now rest... but he would never join them in Heaven, for it repulsed his kind. For he was of Hell, not of Heaven. He would never be allowed in Heaven, never allowed to join his family in the afterlife.

And for Nathan, what else was there for him to do?

Kill the demon he made a deal with and regain his soul. It would at least grant him some redemption.

And he succeeded.

He killed Malebolgia, killed any demon that got in his way, and regained his soul while keeping his Hellspawn powers.

And now, he roamed the Earth, a watchful guardian. Willing to take on whatever Heaven or Hell threw at him next.

But his life was about to change once more.

"GAH!" Nathan yelled as he smacked off the edge of a closed dumpster and fell to the floor, groaning in pain. He looked down at his body, seeing the Necroplasm that was basically his blood, dribbling down his chest. It hurt a lot more since the damage was done with Angelic weaponry, a Hellspawn's weakness. Even if he was a;ove again after regaining his soul, that didn't mean he had no weaknesses as he did when he was undead. He could still be killed by holy weapons.

A chuckle drew his attention and his glowing green eyes glared darkly at the Angel that dared step foot in his alleys and attack him. He was just like any other Angel, armoured, white wings folded in, wielding a spear.

The Angel, who had not even given his name yet, scoffed as he swept a gesture at the downed Hellspawn. "This is the Hellspawn that defied Hell? That killed Malebolgia? They said you were a killer. An unstoppable force... all I see is just another pathetic Hellspawn needing to be put down like the rest of your kind. It's a shame you won't die in Hell."

"I've been living Hell for the past year, Angel." Nathan growled darkly, his voice low and cold as he stood up though had to brace himself against the dumpster as his wounds flared up. He would heal, but Angelic weapons slowed that, making him more vulnerable to death. "I bet the place below ain't much."

The Angel smirked before rearing his spear. "Regardless. Know that I, Raquel, am your executioner. For all the Angels you've killed, I will avenge them by taking your head."

Nathan growled and he lunged as Raquel threw the spear, but Nathan quickly sidestepped it, pushed the pain to the side, and tackled the Angel into the wall. Nathan wasted no time in gripping the Angel's head tightly and began to press down with his strength, ignoring the Angel's screams.

"The only reason... you got this much hit on me... is because you caught me off guard." Nathan hissed, his cape writhing with his emotions, his chains rattling. With a final, hard press, the helm dented and the Angel's head was crushed into paste underneath. Blood seeped out the helm and Nathan stumbled back, watching the body fall to the floor.

Coughing, Nathan slid against the wall and stumbled away from the scene as best as he could. He walked over to the dumpster and sat beside it, sighing heavily while pressing a hand to his wound, leaning his head back against the wall.

"Fuck..." He muttered drowsily. What he wouldn't give for sleep right now.

"Holy shit..." A voice said, drawing his attention and when he looked, he silently groaned at seeing some thug had come onto the scene, looking from the dead Angel to him. "Well, waste not, want not, am I right?"

He drew a gun and aimed it at the Hellspawn, intending to see what valuable he had on him, even if he looked like some freaky Batman cosplsy. However, before he could get even close to him, Nathan drew a pistol and fired a single bullet through the man's head. He watched the blood splatter onto the walls before the body dropped to the floor.

"Fucking idiot." Nathan shook his head, and leaned his head back, intending to close his eyes and get some sleep while his wounds healed.

"What the—?!"

'Oh for fuck's sake.' Nathan silently seethed. Was it too much for the Universe to give him at least a chance to recover? Just one?

He looks over to the direction of the new voice, and blinked repeatedly at what he saw.

Three individuals can be seen at the entrance of the alleyway but they are far from looking humans as one was going to expect. From what can be seen, they are what you would expect demons to look like.

Three of them specifically stand there.

The center-most one is red with white splotches on his body and face with black-and-white striped horns with black spines between them running to his tail, and black stripes around his tail. He is dressed in a type of jester suit, a torn black collared coat with red buttons, black boots, and large black gloves with yellow eyes on them. He also has a red skull charm around his neck with a heart-shaped skull symbol that rests on his forehead. His eyes have black lines running down the eyelids and his sclera is yellow with a red iris. In his hand looks like a pistol that resembles that of a flintlock.

The right one has red skin and white freckles on his cheeks. He has white pointy hair that leads up to his curvy black and white striped horns. For his eyes he has yellow sclera with black slit pupils and he has a long red thin tail with a quadrilateral barb at the end, as well as lanky digitigrade legs ending in what appears to be cloven red hooves, reminiscent of artiodactyls. He wears a navy-black coat with red buttons and white cuffs, black pants a white shirt that has a black turtleneck, a large red bow-tie, and fingerless gloves. He seems to be holding a type of black rifle but of a make and model not seen before.

The last one on the left is undoubtedly female she has a long demonic tail with white markings. She has red skin, eyes with yellow scleras and black pupils, and long black eyelashes that extend beyond the sides of her hair. She has two black horns with three thin white stripes and greyish-black hair worn in a messy bob style and bangs that cover half of her right horn. She has a beauty mark on her left cheek and a gap between her front teeth. Her attire consists of black lipstick, a simple black choker, a cold-shoulder black crop top with gold buttons where the straps at the top meet the torso piece, torn black pants, fingerless black gloves, and black footwear that does not cover her hoof-like toes. She also has a black tattoo in the shape of a heart on her left shoulder, and two white splotches on the insides and outsides of each of her elbows. She is also carrying a black knife.

Both parties stare at one another in surprise and confusion. The demons stare at the body on the ground, then to the wounded Hellspawn.

"Oh for fuck..." Nathan mustered weakly before his eyes closed and he slipped into the realm of dreams and nightmares.

"…"

"…"

"… What… the… fuck?" The center Imp blurts out in confusion at the scene he and his employees just witnessed. "I don't… What?" He continues to hesitate. "Moxxie what the fuck just happened?" He turns to the other male Imp at his side and asks.

"I don't know sir." Moxxie, the white haired make Imp replies as he looks just as confused. "But from the looks of it, that's a Hellspawn, a dead Angel and a dead human."

"No shit! I can see that!" The center Imp snapped.

The female Imp ignored the boys and approached the unconscious Hellspawn, getting the attention of the other two with Moxxie's eyes widening at seeing her approaching the downed Hellspawn.

"Millie, be careful!" He shouts.

"Oh relax hun. I'm just checking on the poor guy." Even as she says this and smiles back at her husband, she keeps her knife clenched tightly just in case. She kneels next to the Hellspawn and uses her free hand to check for a pulse on the guy's neck. A little bit of searching and she nods. "Well, good news Blitzo. He's still... alive."

"Aren't Hellspawn usually undead?" Blitzo scratched the side of his head before shaking it while holstering his flintlock. "Doesn't matter. What does matter is the fact he stole our kill! Our target is right there!" He pointed to the dead human. "And this fucker took the kill!" He kicked a trash can. "God fucking dammit! This is just great!"

Millie hummed in consideration of something as she looked at the unconscious Hellspawn, watching his wounds slowly begin to heal. "Wasn't there talk of a single Hellspawn in this era?" She asked the boys." And wasn't there talk about one going rogue against Malebolgia, and killing him?"

"You mean that fucking Overlord? Millie, I don't listen to just uninteresting gospel." Blitzo rolled his eyes, then paused. "But wait, you think that's the guy?"

"Considering he's the only Hellspawn on Earth, sir, I'd say he is." Moxxie said, crossing his arms. "From what I've managed to hear-"

"Managed?" Blitzo snorted with an amused grin. "Like you try to manage to leave Millie satisfied in the bedroom?"

"SIR!" Moxxie shouted at the snickering Blitzo. "That is totally inappropriate!"

"If you boys are done." Millie caught their attention as she gestured to the scene of bodies. "What do we do? I mean, our target was killed for us. Mission accomplished."

"No, not mission accomplished!" Blitzo shook his head. "WE didn't kill the target. This jackass right here did!" He gestures angrily to the same unconscious Hellspawn. Moxxie walks up to his wife where they both share a look of confusion before staring back at their boss. He clasps his hands together, takes a deep inhale before sighing in frustration as he continues talking. "Look, the both of you aren't the boss. You both didn't find IMP like I did. When you make a company, it also comes with responsibilities. Responsibilities such as a reputation." He folds his arms behind his back and walks around the scene. "What type of reputation are WE making for ourselves, for this company, if when we promise a client we kill the person they want, WE aren't the ones to do it?" He finishes saying as he stops back in his original position.

"Ohhhhhh." Millie hums in realization.

"But theirs no one else here!" Moxxie tries to reason as he looks around. "Theirs nothing stopping us from simply telling the client WE were the ones to kill the target."

"It's a matter of principles Moxxie." Blitzø straightens up as he raises his finger before giving a half-lidded stare at Moxxie. "Not like you have any yourself." Moxxie gives an annoyed look at his boss as he continues speaking. "While no one else will know about that possibility, it is us that will know and I REFUSE to have that stain on my conscience forever!" He finishes giving off a put together rousing speech of integrity.

Millie claps lightly with a smile on her face.

Moxxie sighs as he pinches the bridge of his nose. "Okay…" He murmurs before fixing his boss with a stare. "Then what do you propose? Be truthful and tell the client we didn't kill his target but his target is dead anyway even though we weren't the ones to do it?"

"FUCK NO!" Blitzø shouts with a grin. "I still wanna get paid damnit."

"Then… what?"

"…" Blitzø takes in a deep breath… the deflates, "… I have no idea." He mumbles annoyed. Even Moxxie looks at annoyed at the wall his boss just put them in as they try to come up with a plan. They all look down at the bodies as they contemplate what to do.

"… Well, I think I have… one idea." Millie hesitantly says.

"Finally someone with an idea!" Blitzø says with a smile as they look to Millie. "C'mon Mills, tell us what genius idea you got for us." He finishes with a smile.

And so, Millie tells them her idea. Not the best but just something that might get them paid and help keep their record spotless… mostly.

"…"

"…WHAT?!" Blitzø shouts in disbelief.

*CRASH*

"Shut up down there!" A glass bottle breaks next to them, followed by an annoyed shout from several stories above them. "And stop wrestling each other! It's the dead of night!" The figure shouts angrily before going back into his home and shutting the window, not at all surprised by the bodies in the alleyway, or if they even noticed to begin with.

The three Imps stare for a few seconds before sighing and looking down at the bodies.

"Ughhhhh… this sucks." Blitzø grumbles.

And that's it for the first chapter. Be sure to let me know your opinions on it in the reviews. This is my first Helluva Boss fic, so bare with me.

Little things to note about it, though.

Malebolgia is an Overlord who specialised in dealing with souls to become Hellspawn. Nathan ended up turning against Malebolgia, killed him and got his soul back which will have a very mixed reaction from Hell since it makes Nathan a threat to the way things work in Hell. That those who sold their souls will try to rise up and regain their souls back, that kind of thing.

So yeah, Nathan's gonna have some demonic enemies when he's in Hell.