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Double Black & The Smart Man’s Rock

Summary:

For those of you coming as a BSD fan: Osamu Dazai and Chuuya Nakahara have lived their entire lives in Yokohama, Japan’s port mafia living the way of the Japanese mafia executive (and subordinate). That was until one day- when two self-proclaimed Magic professors showed up extending invitations to a magic school over five thousand miles away! Without giving it too much thought they accepted. There's no telling what will lie in store from this point going forward. But our young Mafiosos know that going to this school is in their best interest.

For those of you comin' as a HP fan: What if Harry Potter grew up Japanese, and had a friend to start with. But grew up with one of the creepiest grossest assholes ever. Shaping him to be amoral or at least morally grey with several mental health issues. Also, Snape is nicer; his love for Lily is stronger than his hate for James.

Certain rules of the universe are gone and out the window. Substituted with my own. Lastly, regarding locations in and around Hogwarts, I will heavily reference Hogwarts Legacy’s in-game map.

Chapter 1: The guy who kidnapped

Summary:

Creepy guy kidnaps, Elise is anti snoopin* magic

Chapter Text

Ougai Mori was the private doctor to the boss of Yokohama Japan’s Port Mafia, and a former general officer in the Great War. He was on a business excursion gathering information on the unusual sightings in the general vicinity of Godric’s Hollow. On orders from the current boss of the Port Mafia. As in recent times, he was obsessed with the idea of a ‘hidden society’ somewhere in the UK. The same can be said for a few other… much closer places in the world. Unfortunately despite Mori’s suggestions to search closer, the old fud insisted that he go personally to investigate. So now here he was, empty-handed. He’d have to find something decent to bring back if he wanted to keep his head, and he couldnt risk it now. Not when his plans have only begun.

 

“Things have changed quite a bit since the war ended,” Mori reminisced to himself, glancing around the village. He chuckled, distracting himself with thoughts about that delicious little girl with the healing ability. “Ah, good times… up until Fukuzawa spoiled my fun, what a pity…” 

 


 

Mori wandered around the neighbourhood for the better part of two hours trying to find any useful intel to gather… but the town seemed abandoned, a ghost town you could say. 

That was until he heard two screams. First the scream of a woman… the kind of scream you hear from someone in a great deal of pain. A moment later, the raspy scream of a man dying sounded. 

 

As he heard this, Mori being the ‘good’ Mafioso he was, changed course towards the house immediately, a small grin on his face. target acquired.

 

On arrival, he noticed the stench of blood accompanied by a particularly ashy waft oin the air.

 Mori stepped closer, an intrigued smirk on his face as he analysed the state of the house. It was in shambles. The door hung off its hinges, windows were broken, and there was visible broken furniture and vases both in and outside of the house. As if someone set off a grenade but managed not to damage the structural integrity of the building… until Mori turned right, noting a large portion of the wall missing... 

 

Once he was sure there were no immediate hazards, Mori entered the house, stooping down to look closer at a broken vase, peculiar-looking Gold, silver, and bronze coins spilt from it. Then, the cry of an infant sounded from upstairs.

 

Upon hearing this, Mori’s smirk deepened. He took a handful of coins, stuffed them in his coat pocket, and promptly followed the cries through the house. Mori grimaced at the distasteful decor but shrugged, nearing the staircase, where the corpse of an adult man known to the Wizarding world as James Potter lay.

 

 Of course, a normal person… no, Mori is far from normal- a muggle like Mori wouldn’t know this so he just did what any upstanding mafioso would do. Looting the man’s ID, wallet, and any other belongings, it was useless to do so- well more useless than anything else he could’ve been doing, -all he found was a pouch of those same coins… which until annalysed would be utterly useless to him.

 

After a louder cry brought back Mori’s attention. Mori resumed his task with a newfound sense of motivation and his interest piqued, he followed the cries to a bedroom through a door next to the stairs.

He stepped inside the dark room illuminated only by the moon’s light. Mori would send others to come and ransack the house later, he couldn't be bothered by that now, there was a child! The only kind of being in this world that he found enjoyable! 

 

He strode into the room and just like the rest of the house ashes were strewn everywhere. 

 

The room was a nursery, which was just as dingy and trashy as the rest of the house- but there were a few blood stains and splotches beside a pile of ash and the dead body of a red-haired woman. Across the room was a small crib with the crying child inside. 

 

Mori kicked the ashes away causing them to spread around the room, he swatted away some of the upwind Ash and stepped towards the crib to inspect the child. His eyes immediately caught on the lightning-shaped scar, seeming to be freshly etched into the boy’s head. Mori smiled deeply looking directly into the child’s dark green eyes. Bingo.

 

 “Why hello there Dolly” he grinned wickedly, hoisting the boy into his arms, rocking him for a second which soothed the child into a light sleep. The two exited the house before Mori continued under his breath. “A moldable subordinate should be valuable enough to replace information…” he muttered with a grin, thinking of what was to come. thankfully, this was the kid he was looking for. Atleast now all he would get is some warning if the rest of the house isnt useful.

 

Elise Manifested and walked alongside Mori. “Still a pervert I see, Old man” she glared while looking at the boy sympathetically and crossed her arms, snatching a lolly from Mori’s pocket before disappearing. 

With that Mori left, a sinister chuckle echoing into the night…

 

By the time a large motorcycle screeched to a halt in front of the home, he and the infant were gone without a trace, sending the Wizarding world into a panic. Not only were Lily and James Potter Dead. But The Boy who lived disapeared. 

 


 

An hour later, Minerva McGonagall and Severus Snape were in a private room at the leaky caldron, the former wringing her hands anxiously and the latter pacing,  seeming agitated and angry.

“How could I possibly know any more than you, Mister Snape” Minerva spat.

 

“Well, Professor- I wasn’t trusted with keeping an eye on the Potters.”

 

“Neither was I and you know that very well,” she shot back, pausing, “Oh wait. You wouldn’t know, would you? Where have you been, precisely??”

 

“How DARE you insinuate…”

 

At that moment their spat was cut short, as the door to the room creaked open and Albus Dumbledore, Headmaster of Hogwarts strolled in, a serene look on his face as if nothing had happened to him in the last hundred years… 

 

“Oh my, I’m not interrupting anything, am I? If that’s the case I can come back later…”

 

“Of course not Albus, Please, please sit down,” McGonagall said  ushering him to the table “I’ll ring for some Tea”

 

“So how did that oversized hairy oaf manage to bungle such a simple task? Even I thought he could do at least this much.”

 

Mcgonnagal and Snape glared daggers at each other again.

 

“Now, now Severus. Hagrid could not have predicted that young Harry would be missing” Albus defends Hagrid calmly, earning a grudging grunt of acceptance from Snape. they all sit down, and the tea is served. Then Albus begins his explanation of events…

 

Dumbledore then pulled a small pillow out from the folds of his robe. He casts a spell and a translucent, scaled-down scene takes form in the air just above the pillow.

 

 A dark-haired infant is lying peacefully in his bed, his head on what appears to be the pillow now found on the table. 

 

Sounds of violence, panic, and muffled screaming come from the edges of the scene. Then, a young woman backs into the space, appearing to shield the bed from… something.  There is a flash of green light, and the woman falls to the floor. 

 

 “Lily, no!” Snape gasped sitting up in his chair, gaping at the scene.

 

Mcgonagall, a subtle look of sympathy on her face, warily asked, “Must we watch this Albus?”  

 

“The worst is over,  just watch” Voldemort steps into view, raises his wand, and casts the killing curse again. This time the green light is pushed back on him, but instead of falling dead, he appears to… come apart, as if turning into smoke. Moments later, the room is empty, and the boy is alone with his mother's body, crying in pain, with a fresh, lightning bolt-shaped burn on his forehead. 

 

Mcgonnagal exclaims, “Thank the heavens, but how, and if that’s the case, then why…”

 

Albus holds up a hand to silence her and motions for them to continue viewing.

 

A couple minutes later, a tall, thin man, with shoulder-length black hair- in what appears to be Muggle business attire walks into the room, only his back showing. He bends over, and says some unintelligible things to the boy, his voice completely indecipherable, he picks the boy up and he turns to leave. 

 

Just as his face would have shown on the screen, a small blonde girl in a bright red dress suddenly drops from the top of the scene, looking directly at the viewers with a smirk on her face, she wags  her pointer-finger back-and-forth and says very clearly “ ah, ah, ah, nice try” 

 

The room is dead silent then Snape exclaims… “What the devil was that?!” 

 

Albus replies calmly “I haven’t the faintest idea, it is the most powerful anti-snooping magic I have ever experienced, no matter how I cast it nor what angle you observe the scene, that precocious child is in the way of anything useful, it’s almost as if she’s inside the spell as we speak. With a different phrase, action or pose each time.”  At that, a faint giggle is heard coming from the image.

 

The girl is now standing on the pillow, the scene before is completely gone, and before they can react, the girl’s high-pitched voice rings, “Got it in one Ojii-san, bye now!” 

Abruptly the girl burst into flames. In a matter of seconds, there was nothing but ash and a single, burning piece of cotton from the pillow on the table.

 

A trace of amusement in his voice “That very well may have been the first useful information I’ve gotten so far,” Albus mused, sipping his nearly forgotten tea.

 

“And how exactly is that useful?!” Snape exclaimed, clearly pushed beyond the limits of his composure.

 

“Ojii-san… I believe” he paused, meeting Snape’s gaze, “That word is Japanese.”