As Kokushibo walked forward with his massive great sword he had activated every brain-boosting quirk together making his brain work beyond its limits. The negative of doing so was that his brain cooked from overheating, but his regeneration offset that pretty easily.
He was editing his Moon Breathing or better match the new style of weapon or even change the style totally. His perception was further boosted from the 10s of eyes all over his clothes and sword.
"I got it, let me use you as my first test subject muscle head."
He kept the brain boost active even if at this very moment his neurons were getting roasted. Even steam was leaving his ears and eyes, but his body was adapting to the change at a rapid rate to deal with the threat at hand.
As he looked at the man walking forward he looked to be Mexican obviously, 6'5 and had short brown hair with a mustache. He was about 32 and looked unimpressed. Kokushibo was prepared to speak in Spanish, but the guy knew English like Roberto.
"We speak English then. Well, your little hero work is getting on the nerves of the boss. We have an empire to run and we can't have heroes in our country now can we?"
As he said that he stoked his little mustache making him annoyed. That mustache was ugly, beards were the cool thing. The only reason he did not grow one was that it would not look good with his face.
"Well gonna talk 6 eyes? Eres bastante lento, no? (Pretty slow aren't you?)"
"Cuando habla el ganado, me sorprendo. ¿Por qué la mera comida hablaría con el que la comerá? (When livestock speaks I get shocked. Why would mere food talk to the one that will eat it?)"
That surprised them, but Kokushibo no longer wanted to speak. The useless monologue was one of the things he hated the most and he was not about to fall into the trope. He pointed the 500-pound blade of flesh at the muscle head as his own muscles bulged when he activated his quirks.
(Looks like Dragonslayer, but the material of Kokushibo's Katana.)
"Moon Breathing 1st Form modified, Evening Apocalypse."
As a cyclone of wind and purple fire appeared on the greatsword as he swung it as his strength was backed by several quirks and his own demon physiology. The ensuing slash caused a storm of giant moons to go toward his prey.
"DODGE!"
The woman ripped all of the metal from the ground and surrounding area to go against his attack, but she only bought them a few seconds before the man charged forward punching his attack.
He roared in agony as his veins glowed silver and a metallic sheen appeared on his body. As he struggled with the attack he charged forward before he raised his arm to the sky detonating it. The ensuing sliver explosion deflected Kokushibo's test attack and the man's arm with it.
He expected the fool to be destroyed along with his own quirk, but he survived and managed to deflect his attack at the cost of his entire right arm. Kokushibo glanced at the grunting fool. He noticed hi a silver glow began to recreate his right arm at a rapid pace.
"You're alive? What is your name?"
The man grunted before he clenched his newly made right arm before he answered. That last deflection took him nearly 82% of his entire energy and he could not do it again. He only hoped Kokushibo was exhausted, but from the look of it he was not even sweating.
"Alejandro Alguacil, why?"
Kokuhibo placed his smoking greatsword on his right shoulder while Muzan was on his left pointing at Alejandro while squeaking. He was laughing at his attempt that only managed to deflect one of his master's attacks while he had so many more up his leave.
"Well Alejandro, I want to recruit you and the woman behind you. I can force you if I want, but If you resit I will devour you."
Alejandro started to gather his energy again as his quirk was called Plasma. He could turn sunlight into Plasma and store it in his body. It would heal him, make him stronger, and at the cost of a limb cause giant explosions.
However, it was slow and tedious to make so much plasma. He fought in short bursts as he wanted to destroy his foe in a single exchange before he had to tap into too much of his plasma stores.
Still, in just one exchange he lost an arm and most of the Plasma he had stored over the past 6 months. He lost even more to regrow his arm and from the look of it the monster was not even drained or tired.
The one reprieve he had was that it was 1:00 in the afternoon so he was recovering some Plasma at an abysmal rate. If he just brought some time for him to h-
"Too slow."
He looked up and saw that Kokushibo was bringing his sword down on his face. At that moment his life flashed before his eyes in droves. He questioned why he even became a cartel member in the first place.
'Why did I become a Cartel member? I could have left and become a hero in America?'
He saw how the sword came closer and closer to his skull before he remembered when he joined. When he was 12 an offered power in exchange for his service, but where did that get him. Being killed by this monster.
At the last second Alejandro was pushed aside by a metal pipe that hit him in the ribs and launched him from the trajectory of the sword swing. Sadly the power behind that swing sliced the woman in half much to his disappointment.
"Damn it. I wanted her alive."
Muzan glanced at the body while Kokushibo kneeled at its side. He poked and prodded as he injected some of his blood to see if he could reconnect the two halves, but no such luck. She was as dead as dead can be much to his irritation.
"Well, I can't cure death. Fuck."
He glanced at the knocked-out Alejandro before he ripped off one of his fingers and he licked some of the blood off. The moment the quirk gene entered his body, it was deemed incompatible and his body worked on overdrive to destroy it.
"Damn, guess Plasma should not be fucked with. I should go after those two Cell Control kids from the Heroes Rising movie if Naomi added it. Knowing her, the answer is yes. Damn you, Naomi, I wanted to go to Second Life Ranker, not here.
At his words, he noticed a sign she loved to use. In blood, he saw a few words saying something he knew sounded just like her.
"Say you love Deku and I will consider letting you go there if you ruin the plot as much a possible."
"Aight bet, consider this world fucked Naomi. Just like you if I find you."
She did not respond, but as he knew better than anyone she was probably laughing at his joke. He ignored his Neet friend and ripped a finger from the woman's hand as well. He licked the blood and his body did not reject it.
He could take the Magneto quirk in his body which made him smile. e rarely got to enjoy eating so he started to eat her body slowly. Alejandro was looking at him in shock as he devoured what was once one of their strongest.
He looked at what he thought of second-hand prize to be a better prize. Alejandro's quirk was stronger, but it had limitations so he took a bite from her heart as he spoke.
"Alright, life or death. Either you accept willingly, or I force you. I wanted to keep her, but I can't bring back the dead. Your choice."
The shocked man only took a second before he tried to punch Kokushibo in the chest with all of the leftover Plasma in his body and an arm as the prize. He would die, but he would take Kokushibo with him.
At that moment the eating demon absorbed her body as he did not want to lose even a small bit of her quirk gene before he just tanked the blast. Alejandro's fist hit him in the square in the heart to destroy it as the fool thought it would kill him.
He felt his outfit which was made from his flesh burn a bit before the impact was dispersed with his stockpile of quirks. Alejandro's arm disappeared as a price before he looked at what he thought would be a smoldering corpse.
When the blue explosion cleared all he saw was that the clothes of Kokushibo were smoking and smelled of burning meat like when they got rid of bodies were just a little charred. As for Kokushibo, he healed his clothes before patting them clean.
"You did well, now serve."
He stabbed several of his finger's into the chest of Alejandro to grab his heart before pumping it full of his blood.
"With your plasma drained, I think I can turn you into a Demon. I will have to be more careful with you, but I can make it work."
When Kokushibo pulled his arm out of the chest of the former cartel member he saw how he squirmed and yelled in pain as the blue plasma in his body started to turn bloodred.
'Maybe, I should eat him as a demon. That way his quirk will be a Blood Demon art and should be compatible with my body.'
He actually started to drool as the idea turned much more feasible. If he could convert Sunlight into Plasma, he could combine it with his sword styles and become even stronger. If he was to leave this terrible world he wanted to be as strong as possible.
At his thoughts, the sky rumbled with lighting making him cringe.
"I forgot how bored you were Naomi. Does defending this crappy manga give you that much of a god complex? SECOND LIFE RANKER, CHARM OF SOUL PETS, SOLO LEVELING, AND DEMON SLAYER WERE WAY BETTER!"
He looked crazy yelling at the sky like that, but he ignored the sky. He looked at Alejandro who was passed out so he grabbed him by the hair and dragged him away while whistling.
"I will eat his arm later, I can take them from just an arm so why not. A strong pawn like this will be a good addition to my Demon Moons. Now I need to go to find a few more before going to Russia. I think a few strong criminals were out there."
Muzan nodded, but it pointed to the giant greatsword Kokushibo was pulling behind him. He turned his sword back into a katana before he shrunk down to his usual 6'4 along while keeping a toned physique.
"Muzan, I should use greatsword style more."
The rat nodded as it seemed to be stronger than normal, but his master was always the strongest. It jumped back on his right shoulder before Kokushibo vanished with his new prize. He had turned three peaple into demons with one rat so he had four at this moment.
One of them was a baby, one was Roberto, now this one so he was 2 down and needed 17 more. Of course, he was flexible and could expand it if he found any strong quirks.
"Wait. Can I also turn Nomu into Demons? I need both the Hood Nomu and the USJ Nomu if that is the case. Of course, I need more quirks as I am now I will be destroyed by the symbols of Peace and Evil."
Muzan was shocked that there was peaple stronger than his master. In his mind, his master was like a God. Who could be this unbeatable master?
"Squeak, Squeak, Squeak."
Kokushibo shook his head she pet Muzan.
"I am weak right now. Just because I am in this world, who is to say aliens will not come here. Naomi said that I was just sent to an existing template of this world for his fun, but it did not mean others could not come here."
Muzan looked at his master mumble to himself, in a crazy tone, but it sound like genius planning to him. His diabolical master was making a horrendous, evil plan. It made the rat cry a tear of joy.
It seemed Muzan was like Demiurge. Overthinking every thing of his master, but it would be funny to see how a rat would do any of the insane things that Demiurge did.