My grip tightened around Enmu's throat. The freak had half an arm merged into the engine of the train. He had tried to run of course. I caught up with him and now here we were.
The fire from the steam engine glinted off my red blade as I raised it until I had the point aimed at Enmu's eye. The demon stopped struggling, seeming to accept his death.
I kicked the brakes and felt the train come to a grinding stop. I didn't lower my blade, instead I put on an evil grin as I spoke to Enmu.
"I wonder if you can survive a Nichirin Blade to the eye… let's find out."
Enmu gulped, just then I heard Tanjiro running towards me.
"Sensei!!! Somethings wrong, we all fell asleep and then yo—
"Tanjiro… you're late." I grinned at him while lowering my sword.
"Sensei?"
"I already caught the demon… he was the one that put you all to sleep."
"Right… ah, what now?" Tanjiro looked unbothered at the fact that I was still holding Enmu up by the throat.
"Hmm?" Inosuke and Zenitsu burst into the engine room, "you three, help the civilians get off the train… one of you get your kasugai crow to inform Ubuyashiki that another Lower Moon is dead."
Enmu began to frantically struggle again, Inosuke looked like he wanted to argue but Zenitsu dragged him away. Tanjiro bowed and muttered a prayer for Enmu.
"We'll get it done Sensei! You can count on us." Tanjiro went off after Zenitsu.
I turned my attention back to Enmu, my sharp grin returning.
"You're not alone aren't you… Muzan wouldn't be stupid enough to send such a pathetic weakling like you to try and kill me."
Enmu gasped, I loosened my grip around the freaks throat. I didn't want him to start liking it. I remembered a scene from the Jujutsu Kaisen anime. Nanami Kento beating the fuck out of Haruta. Women had loudly claimed that they wanted to be treated like that by Nanami Kento.
I fought back a shudder, imagining Enmu getting turned on because I choked him.
"Not gonna talk huh?" I glanced at Enmu over my sunglasses.
Then, the engine car groaned. I hummed and dropped Enmu just as the front of the train car was torn away. Short pink hair, thick linear tattoos all over his body, a smug grin on his face.
Akaza had arrived.
"A pathetic worm like you doesn't deserve the rank of Lower Moon, you can't even handle a few weaklings?" Akaza sneered at Enmu who was coughing and trying to regain his breath.
The demon seemed to not notice me, Enmu stood back up and opened his mouth to say something. Unfortunately for him I wasn't going to let him monologue. My sword sang as I swung it with blinding speed.
Enmu's head thumped to the ground, Akaza looked up and noticed me. A grin formed on his face.
"You… I see why he failed his task. I couldn't even sense you."
"Hah? You say something pinkie?"
Akaza didn't seem phased at my disregard, "What is your name? You had no hesitation in killing Enmu… a swordsman such as yourself is worth killing."
I stared at him like he was stupid, I knew his tragic backstory. It didn't explain why he was talking like some third rate villain in a B movie.
"You can call me Satoru… though it doesn't really matter, you'll be dying here just like Enmu." I replied.
Akaza smirked and hopped off the train, seemingly expecting me to follow him. So I obliged him, I flexed a little by using Blue to teleport in front of him.
His grin only widened, "I see, you're fast. This will make this fight interesting."
I twirled my sword lazily, flicking Enmu's blood off of it. I could sense Tanjiro not too far off guiding people off the train. I grinned and sheathed my blade while taking an Iaido stance.
Akaza saw me take my position and took his own martial arts stance. He wasn't really a threat, I didn't hate him like I hated Douma or Muzan. I understood him, he was supposed to be a tragic character. Still, that didn't mean I wasn't going to kill him after showing off a little.
The ground cracked under his bare feet as he leapt forward. My nichirin blade came up lazily and blocked his kick. He spun and launched a spinning back fist towards my head. I swayed in place and let it fly past.
He jumped back, his grin never leaving his face.
"You are worthy of your title…"
I scoffed, "I haven't even done anything… here, let me give you a reason to say I'm worthy."
I blurred forward, Cursed Energy enhancing my limbs as I slashed into his chest faster than he could react. I pulled back just as quickly and flicked the blood off my sword again.
"Heh, not bad… say, why don't you become a demon?" He said in a casual tone.
"I don't need Muzan's blood to be strong." I smirked.
Akaza burst into movement, no hesitation in his attacks. He chained punches, kicks and elbows. His rhythm was tight, it was pretty clear that he was an exceptional martial artist.
Unfortunately for him, he was up against me. As a cheat character, none of his attacks mattered. I dodged, blocked, and redirected all of them with effortless grace.
"Nice form," I said, grinning. "Shame you can't even touch me."
Akaza snarled and jumped back. The air around him flared as he activated his Blood Demon Art. A glowing compass styled like a snowflake appeared beneath him. He took his martial arts stance again.
"Join me as a demon Satoru, I respect your strength." He tried to convince me again.
"I like my hair the way it is… I'd rather not get pink hair like you." I dismissed him as I stepped forward.
His grin widened as I stepped within range of whatever attack he was planning. A gust of wind shot at me, only to dissipate harmlessly against Limitless.
I could tell that each of his attacks would have been deadly had they been able to land.
I faked a yawn, "Is that it? Wind attacks and a fancy magic circle?"
"I admire your resolve Satoru… to show you just how much I respect your strength. I will kill you with my own hands." He spoke as if stating a fact.
I grinned, "Nah, I'd win."
I launched forward, dodging his attacks and retaliating with a swing of my own. I could tell he was getting frustrated, none of his attacks landed, Limitless was unfair like that.
I spotted Tanjiro watching not too far off, Zenitsu and Inosuke stood next to him. I grinned, 'Let's give them a show.'
Limitless deactivated, Akaza's punch landed, piercing my chest. He grinned thinking he had won. I heard Tanjiro shout in alarm as Inosuke and Zenitsu held him back.
I remained standing, glaring at Akaza who was smiling widely now.
"You, lose Satoru." He smugly said.
My grin never faded, I stabbed my sword into the ground. Cursed Energy surged in my body, I grabbed his arm, his smile fading when he realised that I wasn't dying.
I could see the shock on his face when tattoos not too different from his appeared on my arms and face. All four eyes glinted maliciously as I kept holding his arm with both of mine.
Then another set of arms burst from my sides. Akaza ripped his own arm off and jumped back in alarm. I tore his detached limb from my chest with gush of bloody. The hole in my chest closed in an instant as I healed RCT.
"That was your strongest attack?" I hummed.
My stomach twisted as a large mouth opened where my belly button should have been. I could see the look on Akaza's face dance between various emotions before settling on shocked.
"Since you were kind enough to show me your strongest attack, let me show you mine." I continued.
'Let's see if this works… I have both power sets now, theoretically I should be able to use both.'
I was confident enough that Tanjiro and everyone else was far enough to not be affected when I unleashed my attack. Akaza braced himself as all four of my arms raised up.
"Domain Expansion…" both mouths spoke at the same time.
"Unlimited Void/Malevolent Shrine"
The world screamed as both Domain techniques were unleashed at the same time. Logically it shouldn't have been possible. An open barrier and a closed barrier domain expansion were contradictions. You couldn't have both.
But I didn't just get Sukuna's powers, I got his ability to asspull Binding Vows out of nowhere too. Coupled with the Six Eyes and unparalleled thought processing. I established a vow that let me unleash both domains in exchange for only having access to 50% of my Cursed Energy.
Even at 50% I still had massive amounts of CE so nothing changed.
Akaza stood frozen in place, my domains preventing him from moving.
"I hate drawing out fights unnecessarily… I've shown off enough."
Akaza remained rooted in place. He was struggling though, I could see the desperation in his eyes. The sheer disbelief twinged with the need to escape.
Thousands of slashes tore into his body, his regeneration kicked in overtime to heal him. To my shock, he managed to move his arms enough to deflect a few slashes but it was all for nothing.
Flames flickered to life on my arms, "Stand proud Hakuji…" I raised both sets of arms. "You were strong."
I increased the amount of slashes until they were in the millions, then billions, I felt my Cursed Energy dip a bit for the first time since arriving in this world.
Then, as Akaza's body crumbled to specs of flesh and gore. My lower arms made a motions as if I was drawing a bow and arrow. Divine Flames licked my upper body, forming into a flaming arrow.
"Fuga…"
[Scene Break]
I was back to normal, spare the hole in my shirt by the time I let the hybrid domain collapse. Tanjiro ran to my side, a concerned look on his face. I waved him off, and took off my haori, handing it to him I took off my shirt and brought out another one.
I threw the ruined shirt in the smoldering wreck of what was left of the engine of the train. Tanjiro handed me my haori back and I patted his head.
"Good job kid, you got everyone off the train safely and kept them back as I fought that Upper Moon."
"Upper moon?!" Tanjiro gaped.
"Yeah, he was really strong."
"Really sensei? Stronger than you?" He asked, excitement showing in his eyes.
"Nah, I'm the strongest."
———————————————————
Omake – Double Trouble II
Yuji wiped the sweat from his brow as Satoru, Gojo-sensei's "brother" strolled into the training field, twirling his shades on one finger.
"Alright, Yuji," Satoru grinned, "today we're gonna test something special."
From the sidelines, Nobara crossed her arms. "Why does that sound like the start of a bad idea?"
Megumi muttered, "Because it is a bad idea."
"Mah mah, daijobudesu… I'm here after all." Gojo lazily drawled while adjusting his blindfold.
Satoru pointed dramatically at Yuji. "I want you to let Sukuna out… just for a bit. Let's have him come out and play."
Yuji blinked. "Uh… play?"
"Yes, play," Satoru nodded, smiling with way too many teeth.
"Are you insane?!" Nobara shrieked.
But Yuji sighed, and allowed Sukuna's jagged grin to spread across his face. The tattoos appeared, eyes blazing as Sukuna's voice filled the air.
"Heh. Bold of you, brat. You really think you can control—"
And then Sukuna froze. Because across from him, Satoru's sunglasses shimmered, his body flexed, and the markings mirroring his own form bled across his skin like living tattoos. The atmosphere darkened instantly.
"Oh, you've gotta be kidding me," Sukuna muttered, his cocky tone cracking.
Megumi's jaw literally dropped. "Satoru… has—what the hell—?!"
"Two Sukunas?" Nobara panicked. "First two Gojo-senseis… now there's two Sukunas!" She wailed.
Sukuna and Satoru mirrored each other's grins, cursed energy sparking across the field. Satoru raised his arms casually. Sukuna knew what was coming next, a he did the same gesture when he was about to attack.
"Ready for round one, Fraudkuna-chan?"
Sukuna snarled, fists tightening. "You dare mock me—"
But before either of them could move, a soft mrrrow cut through the tension.
A fluffy white cat padded into the training ground, hopping lightly onto Satoru's shoulder before climbing up to his head. The cat wore a tiny pair of matching sunglasses, perfectly perched over its feline eyes.
"Mei-Mei!" Satoru cooed, scratching under the cat's chin. "Who's my little princess? You are! Yes, you are!"
At the sidelines, everyone scratched their heads. 'Mei-Mei?'
He turned back to Sukuna, the cat now proudly sitting atop his head like a crown. "We fight like this. Mei-Mei demands it."
"… You're not serious." Sukuna's expression went blank.
Satoru tilted his head. "Deadly serious."
Sukuna looked at the purring cat, then back at Satoru. He pinched the bridge of his nose.
"Forget it. I'm not fighting you like this."
And with that, Sukuna retreated back into Yuji's body.
Yuji stumbled, blinking. "Wait, what? He just… gave up?"
"Yep!" Satoru grinned, stroking Mei-Mei's fluffy fur. "No one can withstand the ultimate domain expansion: kitty cuddles."
Nobara facepalmed. "This is the dumbest thing I've ever seen."
Megumi muttered, "Are we ignoring the fact that Gojo-sensei's twin also seems to be a host for the King of Curses?"
Nobara nodded, Gojo grinned, and Yuji looked between everyone, still confused as to what just happened.