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Published:
2023-05-23
Updated:
2025-08-31
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17,853
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6/?
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Debt collecting is a dangerous job

Summary:

That was the last time he’d ever do a favor for someone else: damn debt collector and shitty clients who can’t pay back their money. Who the fuck takes out a 2 million loan without any way to pay it back and why the fuck did they give him the 2 million.

Now he’s the bad guy and some 13-year-old girl with the biggest gap known to humanity randomly rushes at him and everything goes black.

Now here he was, some crying baby beside him, and what appeared to be a room full of weirdos in green robes bowing down to them. He couldn’t move his damn body and no noise would come out of his mouth.

Life sucked ass

(AU where Chuuya is reborn as Damian Wayne's younger twin brother. He quickly comes to the conclusion that this needs to be everyone's problem)

Notes:

There are no Batman and Bungou stray dog crossovers so I decided to write one. Damian and Chuuya are my fav characters from both series so why not make a fanfic surrounding them?

Chuuya will still be his overpowered self and will cause lots of migraines for the Bat clan. I'll probably have to ner Chuuya a bit when he fits humans( bat clan and league) a bit just for plot reasons but I doubt he'd beat Superman or Wonder Woman in a fair fight. So he'll be op but not planet buster op.

I also have some ideas on who Chuuya can interact with other than the bat clan and the league. Also, I was thinking of pairing Chuuya up with some DC characters. I don't know who yet but I'll figure it out when the time comes. I'm not really big on romance in crack/action stories so it'll be unimportant to the main plot but I thought it'd be cute.

I was thinking of someone from times age and down to pair Chuuya with. So if you have suggestions you can put them in the comments and I'll look into that character. I was also thinking of pairing Damian with Jon. Though if I do it'll be more like puppy love/budding feelings. Nothing serious and just a gag if anything

Anyway, updates are whenever I feel like it, and thanks for clicking on the story.

(See the end of the work for more notes.)

Chapter 1: That time i reincarnated into a cult

Chapter Text

The group back at the port mafia where never going to let him live this down, actually, everyone who’s ever heard of his name would let him live this down.

The feared Chuuya Nakahara, was defeated by a goddamn 13-year-old. What was this? Harry Potter on crack?

That was the last time he’d ever do a favor for someone else: damn debt collector and shitty clients who can’t pay back their money. Who the fuck takes out a 2 million loan without any way to pay it back and why the fuck did they give him the 2 million.

Now he’s the bad guy and some 13-year-old girl with the biggest gap known to humanity randomly rushes at him and everything goes black.

Now here he was, some crying baby beside him, and what appeared to be a room full of weirdos in green robes bowing down to them. He couldn’t move his damn body and no noise would come out of his mouth.

Life sucked ass

Watching those around him, he looks out the corner of his eyes as he watches the annoyance beside him be picked up by some brown-skinned women. “This one shall be named Damian al-Ghoul, he will grow to be the demon head and ruler of the world,”

Rolling his eyes as best as his new body would let him Chuuya couldn’t help but sigh(coo) out loud. The delusions are high with this woman. Does she know how much it takes to rule the whole world? The manpower and money that shit would take? Hell, not even money would work if that blonde American's failure was anything to go by.

Not like it was going to be his problem though, he wasn’t the one they were calling the ruler thank fuck.

Placing the baby back down after the robed group of people shouting clears out the woman puts down the baby gently and goes to grab the other, quieter one. “And this one shall be called Bruce,” speaks the woman quietly and more subdued.

 

Are you sure about that dear,” speaks up a judgemental voice to the right of Chuuya.

Closing her eyes the woman turns around to face the voice. “I am certain Father, I believe Bruce shall live up well to the name he has been given. “

Closing the distance between them the older male looks down at the baby. “I do admit, he resembles the man somewhat. Fine name him whatever you want, as long as his loyalties don’t sway as his fathers did,”
Great. He was related to these people now, Today was not his day whatsoever.

Watching as the man walked out of the room the woman clutches the baby in her hands closer to her. “Don’t worry my beloved, I see great things in your future, my little warrior,”

Looking up at the woman now dubbed “Taila” Chuuya looked back at the robbed people who were still kneeling and the candles everywhere. This was a fucking cult, wasn’t it?

The fucking robbed people, the candles everywhere, and the obvious summoning circle in the goddamn middle of the floor. Was that real blood? Why was there a bunch of severed heads organized in the back- again, not his problem.

Also, he refused to answer to Bruce of all things. What a shit-ass name that was. Sounded like something you named a goldfish that was scheduled to die in 4 days. Fuck the cult, the first order of business was changing that fucking name, the second order was getting some wine. He was probably going to need some soon.

On the bright side, he didn't have to worry about anyone he knew laughing at him. If he was lucky they’d all be elders by the time it took for him to grow up again.
—----------------------------------------------------------------

 

Okay, so he was wrong about the whole cult part. It definitely falls under the cult umbrella but he didn’t think most cult kids got knifes thrust into their tiny fingers at the ripe age of 8 months old.

Shit, the other kid could barely even walk yet. What the hell did they need a knife for? Looking at the brat he could see the kid starting to put the end piece in his mouth. Well, at least he didn’t put the sharp part in his mouth.

Looking at the knife in his hand that his new mother, Talia, had given him. She gently grabs his and his twin brother's hand and guides them toward a table. On the table are two cages with what appear to be pythons in both of them. One obviously being bigger than the other.

Their grandfather was standing near the cages eyeing both kids with a blank stare. Beside him were people who Chuuya had never seen before.

“Starting today, both of your training begins,” yells their grandfather as the men beside him move to bring both kids a cage. “Your job is to kill these Pythons with the knives that were handed to you,”

With that, every person in the room starts to watch the reaction of the two boys in the room.

First of all, why did they give him the bigger snake, and who expects two 8 months to kill a python without any training?

Turning to look at his drooling brother who was still chewing on the end of his knife. No way in hell this idiot was going to know how to kill a snake on instinct. At that moment, Chuuya knew it was on him to get them through this mess, and no, Chuuya did not give a damn about the idiot who was now his brother. Just that if the loser died then it was up to him to take over this shitty organization.

And that would be a terrible idea. Cause as soon as he hit the age of 10 he was out of this bitch. If they were lucky he’d visit every year or so. Maybe bring back a souvenir- anyway!

Their survival was all on him and he refused to die to a goddamn snake in this new life he got.

Deciding to himself that he was in charge the ginger-haired toddler starts to wobble towards the cage with the 45 inches long snake. Looking back towards the other boy he motions towards him to get his attention. If he was going to take one for the team then the waste of space had better pay attention.

Seeing that the kid was looking at him, he braved forward and grimaced as he look at the snake who looked at him as if he was their 5 o’ clock dinner.

Hearing chuckling he looks up to see his grandfather smirking at him. “It looks like this is the smart one,” he mocks as if this is all one big joke.

“Maybe Burce was a fitting name for him,”

“Bbgfuk uyiww( fuck you),” he spits out as he goes back to staring at the snake. Well, might as well get this shit over with.

Talia grabs Damian’s hand as she and everyone else back up to allow Bruce room. One of the men opens the cage and expertly grabs the python and sets it down near Chuuya.

Quickly letting go of the snake the man backs away and regains his spot behind his grandfather.

The snake starts to slither toward him like a predator hunting their prey, Which to be fair, with how it was looking the snake had the right idea.

As if impatient the snake lunges for the ginger. With all the grace of an 8 month, the boy tries to move out of the way. Well, tried too.

Looking towards his mom as the snack begins to wrap itself around him. It hits him that absolutely fucking no one is trying to help him. Talia is holding back the brat and out of the corner of his eye, he can see that old geezer looking disappointingly at him. Like it’s Chuuya’s fault his stupid 8-month body couldn't fight off a 45-inch Python with his bare hands. Also, where did that damn knife go?

Looking around with the little view he had he could see the knife given at the feet of his grandfather. Who is very far away from him. Great.

This was looking like a fat gg the way Chuuya saw it. Maybe third luck would be the charm. Besides, he didn't even like anyone in this room. Fuck all of them. Fuck the bitch with the ugly clipped ends that was his mother, fuck the wrinkly dusty bastard that was his grandfather, and lastly fuck the brat who was STILL CHEWING ON THAT KNIFE WHILE HIS BROTHER WAS DYING!!

With what feels like hours the people in the room stand there and watch as the life slowly gets sucked from the ginger.

“I guess the name Bruce wasn’t fitting for the little one, wouldn’t you agree Talia,” speaks the man as he dully watches the child die.

“The fight is not over yet Father, I remember someone telling me the battle is never over until the final breath is taken.

Chuckling the man smirks to himself. “I do recall saying such words,”

Fuck, now their making small talk while he gets his shit rocked by a legless reptile. Also, who the fuck was this bastard calling Little? Chuuya was way taller than that asshole when he was an adult. Only 22 at that!

He’d show him what happens when you mess with a mafia executive. Moving his arm as best as he could the toddler grabbed at the flesh of the python. He had never tried to use his ability yet in this world, he didn’t even know if he could but this was an all-or-nothing situation.

Please please please let this work. Arahabaki if you are there I’ll give you all the doggy bacon bits you want.

“Well, I assume it’s over now,” speaks up the head as he slowly walks towards the snake and the child it has killed. “Pity, with the name given to him I held high hopes for this one-”

Before finishing the sentence he’s stopped by a random object knocking him in the face, sending him flying backward and landing on his back.

With that, the entire room goes into a frenzy. Everyone takes out their weapons as they rush to their master's side. Some of them standing in their spots, feverishly looking around the room for intruders.

Standing up from the spot he was currently stuck in Chuuya laps up all the oxygen he could inhale. Looks like life hasn’t given up on him yet.

“Who dares to attack the demon head!” shouts out one of the men who previously stood beside his grandfather's side. The fucker was next after he was done with the man on the floor.

“It’s the python-how did it get there,” shouts his mother as she rushes up to Chuuya.

So now the bitch cared about him. Wow, would have been great if she did something 3 minutes ago. However, now wasn’t the time. He had a man to kill.

Slowly getting up the ginger toddler wobbles away from his mother and makes his way towards the group of men surrounding his grandfather. He’d show that fucker who was little!

Grabbing the snake by the end of its tale he uses his ability to make it light as he lifts it up and slams it down on his deadbeat grandfather. To gain some motion he starts whipping it some more beside the fallen elder to test out his strength.

Using too much strength the toddler smashes the python to the ground. Creating a small crater in the ground. With blood and guts going everywhere, the ginger sheepishly chuckles as he drops the end of the snake. Nothing he could do with that anymore. That's fine, cause there’s another snake.

Heading towards the direction of the other snake the boy is stopped as he feels one of the underlings grab him and hold him in the air.

Kicking his feet the boy tries to get out of the man's hold but finds himself unable to. Going limp in the adult's arm Chuuya turns his head to look for his brother.

Finally finding his brother….who is still chewing on that damn knife. Ok, so the kid might be a lost cause but that's fine. He can just beat the fucker into shape later.

Holding up his right arm he gives a thumb up in his brother's direction.

“Uuu awe nesst brat( your next brat),”

His brother finally drops the cursed knife and starts giggling at him.

On the ground, Ra's feels an uncontrollable shudder piece his body. As if it’s anticipating the oncoming pain coming its way.