I do not own One Piece or My Hero Academia that belongs to their respected owners
There will be references from other anime, shows, games, and etc that I also don't own.
Opening to use My Hero Academia opening 3-5 or One piece Superpowers by Dave full credit to Dave music.
Ch. 8
The Demon Heir vs. Part 1
Douglas Bullet vs AFO and his Army! The Strength of the "Demon Heir".
At the battlefield
"No! I-it can't be! You already escaped?!" All For One yelled in fear.
DON!
DON!
DON!
"DEKU!" Ochako cries out.
"Hey Ochako-Chan," Izuku/Bullet said as he tossed the two black orbs into the air and jumped down and frowned.
"So, let it begin," Izuku/Bullet said coldly.
"Why?... WHy?...WHY?! Are you dead set on killing us?!" Mustard screamed.
"Because...You lied," Izuku/Bullet said coldly as he pointed to All For One.
"Heh, I had expected you to escape but not now..." All For One said.
"Great Bullet is here and the boss is going crazy," Muscular said
Meanwhile with Ochako.
"He's here to save us," Ochako said
"..." Inasa in silence but was doubting her statement.
"I'm glad he's here but how?" Mono said
"Yeah, but how wasn't he imprisoned in Tartarus even if he escaped. How did he get from an artificial island to Japan within 30 minutes?" Shouto asked
"Because he's a man who can never stop. Demons run when a good man goes to war. But what if the good man was a demon himself?" Kastuki said
"Whoa that deep Bakubro," kirishima said in awe.
"Yes, But will he beat that villain?" Tenya asked
"He will beat him...cause he's Deku!" Ochako said with a smile.
Meanwhile at the Midoriya household
"YAY! Big brother/Papa is there!" Eri and Izumi cheers for her "father" and brother.
"Wow, I knew he was strong but manage to escape from Impel Down and Tartarus? I'm so proud of my boy!" Hisashi said with a smile.
"I'm proud too but he went through tough times without us," Inko said worriedly
Back with Izuku/Bullet
"I never thought I used this thing..." All For One said as he pulls out a Golden transponder snail out from his suit as Izuku/Bullet eyes widen.
"WHERE THE HELL DID YOU GET THAT THING?!" Izuku/Bullet yelled at the old man
"Heh, a fleet admiral gave me this in case you get in my way." All For One said as he presses the button.
BEEP!
"..." everyone in silence.
Then suddenly...
BOOM!
As a giant portal opened up allowing marine airships and Frieza Force ships appeared.
As the ships landed troops ran to surround the pirate with cannons aimed at him there was even a castle that transformed into a mech with Ronin Slade (Ninja Batman) piloting it and then Wolfram who was bailed out by the Marines enter the battlefield as well.
And came out was Fleet Admiral Akainu Sakazuki, Admiral Fujitori, and Admiral Kizaru.
In total, the army's number was 1,000,000 but later in the day, that number will be greatly reduced.
"SURRENDER DOUGLAS BULLET! WE GOT YOU SURROUNDED AND WE GOT GENERAL DEATHSTROKE AND WARLORD FRIEZA ON OUR SIDE SO JUST SURRENDER!" A marine Yelled.
"Wow... and I thought the marines or All For One couldn't get lower... I was wrong," Izuku/Bullet said unemotionally as he pulls out the dome energy shield generation and tosses it to Ochako's position.
"Greeting Pirate," Akainu said to Izuku/Bullet
"Mindless Mutt," Izuku/Bullet said to Akainu.
As Frieza who is in his final form because he heard the rumors of him. As one of the five groups/people in the world that his father warned him not to fight under any circumstances, they are the Yonkos, the Seven Deadly Sins, the Legendary One Punchman, Golden Lion Shiki and worst of them all Douglas Bullet the Demon Heir. Walked up and stared at Bullet.
"So you're Douglas Bullet "The Demon Heir"? I thought you are older?" Frieza asked.
"And I thought you be taller but hey I'm not judging," Izuku/Bullet said
Usually, Freiza would kill him for that but if the rumors are true then even his Golden Freiza form would have problems.
As Izuku/Bullet finished his statement he manages to dodge a magma attack by jumping.
"Grr... guess it will take more to take speed to take him down," Akainu growls.
"Show us what you got kid," Wolfram said as he puts on the Quirk enhancer device (Two Heroes Movie)
(Imagine this fight as Madara vs shinobi alliance army)
As Izuku/Bullet lands on his feet
"Very Well then," Izuku/Bullet said coldly as he started walking then his speed went up greatly.
As the other side roared with adrenaline.
"GRR!" A Freiza force member roared
"RRRAAHHH!" A marine roared
"GRRRAAAHHH!" Another Freiza force member roared and ran at Izuku/Bullet.
As Izuku/Bullet ran into the group he starts to kill them one by one with only hand to hand combat as marines or Freiza force members was trying to kill him.
One was unfortunate enough to have his top kicked to the ground but was dead as he kicked him.
Izuku/Bullet then jumped to a different group of fighters. And keep fighting them as his Observation Haki was on max even a little future sight. Then with blinding speed went to a different group.
As a marine threw an explosive Kunai at Izuku/Bullet but he grabbed it took off the explosive tag and put it on some poor Freiza force member than kill the marine who threw the kunai with the exact kunai that was thrown.
"H-help! ME!" The Freiza force member yelps as he exploded along with anyone caught within the range.
BBOOOMMMM!
Then Izuku/Bullet jumped out of the explosion while grabbing a katana and started to kill as many marines and Freiza force members as he can then fought a sword used of the Freiza force and Izuku/Bullet's sword breaks but kill the guy with the broken sword.
As a marine was trying to slash at the pirate. Izuku/Bullet broke his arm and jumped up to kick the guy the marine with the broken arm and a Freiza force member and then killing the guy who was trying to get him with an Earth-style Headhunter Jutsu.
Then took another sword from a marine and fought another marine swordsman and kill him then use his body as a shield from incoming bullets, kunai, and lasers. Then as a Freiza force member using an ax trying to kill Izuku/Bullet but he used Conqueror's Haki to stop him in his place then killing him with a sword slash. Then grabbed an unfortunate fellow and said.
"You want to die as well?" Izuku/Bullet said coldly but was blown back by All For One stolen wind quirk.
Then Izuku/Bullet patted off the dust on him and pulls out a kote from a marine and absorbs it and made a cannon.
"IRON BUILD! SLAM CANNON!" Izuku/Bullet yelled out as his arm turns into a cannon and pulls out a ninja scroll and loaded it into the cannon which transformed into a dragon cannon.
"Oh no," a marine said in fear.
"FIRE STYLE MAJESTIC DESTROYER FLAMES!" Izuku/Bullet yelled as powerful flames came out from the cannon and fired at the army.
"WATER STYLE WALL OF WATER!" The marines yelled as they spout out water from their mouths.
As the fire and water clashed it created steam that covered the battlefield.
Then Izuku/Bullet ran into the steam and started fighting again.
As Izuku/Bullet defeated or kill anyone in his way he decided to up his attacks on a wide scale.
"OMEGA BUILD: FUNCHUNKS AND BAD AXES!" Izuku/Bullet arms became the funchunks and the bad axes.
Then he slams the funchunks into the ground and the electricity shocked the poor unsuspecting Marines and Freiza force members. Then use the bad axes to cause damages to their forces.
As many marines and Freiza force charged at him. They were either shocked or chop to death.
"No! He using the Omega Builds already?!" Akainu said in fear.
"YASTU KAMI SCARED JEWEL!" Kizaru teleport to Bullet's location and kicked him.
But then...
"Omega build BLOCK PARTY!" Izuku/Bullet yelled as another arm appeared and became his shield then another arm came out and transformed into his Giant Iron Rust Sword(BFS).
Then slashed at Kizaru who wasn't fast enough to dodge and his chest started to bleed. I guess Izuku/Bullet used haki at the last second.
"Grr... GINYU FORCE! ATTACK! AND NO FIGHTING POSES!" Freiza commanded
"RIGHT!" the Ginyu force replied.
But inside...
"NO! WE CAN'T DO OUR AWESOME FIGHTING POSES!" the Ginyu force cried inside.
The Ginyu Force charges at Izuku/Bullet.
Recome punches Izuku/Bullet in the chest which made Izuku/Bullet drop his builds.
Then was thrown into the air by a combination of Burter, Jeice, and Guldo quirks. Ultra speed, heat balls, and Psychic.
"NOW DIE! SUPERNOVA!" Frieza yelled as he threw his island destroying attack ball at Izuku/Bullet.
As the Supernova was getting closer and closer... Izuku/Bullet's arm became covered in darkness then...
BBBBOOOOOOMMMMM!
An explosion happened and then Izuku/Bullet crash into the ground but got back up with his arm covered in darkness.
"Heh, Freiza don't you know that after a Supernova a black hole appears after?" Izuku/Bullet said with a smug smile.
"N-no that's impossible w-why does he have the Dark-Dark Fruit?" Wolfram asked in fear.
"Hold on, that's Teach's devil fruit how did he kill him?" Muscular asked
"It... must have been the time when I recruited him... he could be a perfect Nomu," All For One said with a devious smile.
"YOU ALL ARE MISSING THE POINT HE STOPPED MY SUPERNOVA AS IF IT WAS NOTHING!" Freiza yelled.
"Wait, I thought if you eat more than one devil fruit you die right?" Mustard said.
"...He's a greater threat than I thought..." Akainu said with hatred.
"Heh, if you think that's impressive check this out! But first, OCHAKO! ACTIVATE THE DOMED ENERGY SHIELD!" Izuku/bullet said with a loud tone.
Meanwhile with Ochako
"Hmm... Is it this one?" Ochako said as she presses the button.
As the Shield activate and surrounds the group with includes All Might, Endeavor, other heroes and many civilians brought in by robots?
"THIS IS SO COOL!" Ochako yelled with stars in her eyes.
Meanwhile with Izuku/Bullet.
"Alright, just you fools know... your deaths are Akainu's and All For One's fault and for me having these new powers," Izuku/Bullet said as he made a certain position as his right arm was over his left. Imagine Whitebeard's attack. Then the air cracked and cracked and then SHATTERED as a shockwave traveled through the army.
"N-no it can't be!" a Marine screamed in terror as the shockwave was traveling through the army.
"THAT'S THE POWER OF THE TREMOR TREMOR FRUIT!" a Freiza force member screamed.
"No way, he has three?! NO ONE COULD HAVE TWO BUT THREE?!" a Marine yelled out.
As the tremor was finished a few of the marines and Freiza force were getting up the remaining of the army was 75%, 25% was eliminated during the first wave.
"Wait Akainu put Bullet in prison and the reports said that the bodies of the Blackbeard Pirates, Shiryu, San Juan Wolf, Pizarro, Katarina, and Shot were found. That must have been the opportunity to kill Blackbeard!" a Marine said.
As Marines and Freiza force members agreed something terrible happened.
"You know I have the power of Darkness but Teach was too stupid of how to use it. I have made it stronger and now say hello to one of the black orbs I threw," Izuku/Bullet said as he pointed at the sky.
Everyone looked up and saw IT.
"Is this the powers of that of a God?" Muscular asked.
As the sky turned dark a black meteor was falling towards the battlefield.
Everyone was running away from the meteor and ran for there lives. Others were either trapped under debris, too scared, or were facing it head-on.
Meanwhile with Ochako
"WHOA! NO WAY! URARAKA! DID YOU KNOW HE COULD DO THAT?!" Tenya asked
"NO! This is the first time I saw this," Ochako said
"Deku I hope you know what you're doing," Ochako thought
Meanwhile at the Midoriya residence.
"Big bwother is scawy," Izumi said
"Don't worry! Papa is the kindest papa there ever was!" Eri declared.
Back to the battlefield
"RUN! YOU FOOLS! GO!" Fujitori ordered as many marines and Freiza force ran but then...
"NO! THIS IS A GOVERNMENT ORDER ELIMINATE THE BOY IS THE FIRST PRIORITY!" Akainu commanded as many Marines were not listening to him ran others stayed and shot at the "meteor".
"ARE YOU THAT INSANE?! THINK ABOUT THE LIVES THAT WILL BE LOST! MARINE AND PIRATES ALIKE!" Fujitori yelled
"They're expendable and it's in the name of Absolute Justice," Akainu said coldly.
"Just you fools know BLACK METEOR is a move combing Liberation and Dark Hole in the form of a giant sphere crashing over you. First it crashes, then it will suck anything into the darkness and crush you, and finally, it will shoot you out with Liberation. If the crash doesn't kill you then the Dark Hole will," Izuku/Bullet said
"GRR... I'll STOP THIS!" Fujitori said as he uses his devil fruit to make the ground float and aimed towards the black meteor and use haki on his hands to hope that the meteor could be stopped.
As Fujitori used haki and the powers of the Thump Thump fruit and haki to protect him from the negating effects of the dark dark fruit he was able to stop the meteor.
"Heh, I'm impressed blind man but remember I threw two. Just what are you going to do with the second one Fujitori?" Izuku/Bullet said as a SECOND one appeared and combine with the first one and crashed above Fujitori.
CRASH!
As the meteor crashed to the ground the meteor started to pull in every devil fruit user and quirk users into the void than a minute later another 35% of the army were alive were decimated in an instance.
The main players manage to dodge the attack but barely and Deathstroke's mech was damage as well.
"Heh, you all are weaklings come on I'll take you all on," Izuku/Bullet said with a smug smile as his body gave a purple glow.
TO BE CONTINUED...