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 use One Day by Dave, Over the Top one piece opening 22 and MHA opening #1
Ch. 4 Invasion: Part 1
Douglas Bullet vs Kacchan and Mirio! Douglas Finds Out the Truth!
After Izuku went into the portal he appeared at a bar then he met with some interesting people.
"So, you're the new recruit Sensei brought. I have to say I'm kinda impressed. I'm Shigaraki Tomura, and we are going to work together for our goal even though your inclusion is last minute," Shigaraki said
"Are you sure? I never heard of this guy but I swear I have seen him before but I can't place it," a man with burns said
"Quiet Dabi! I want to cut him. Hi, I'm Himiko Toga! You can call me anything you want," Himiko Toga said.
"Sorry, I'm taken, but I do know a guy that would go for you he responds to the name of Kacchan," Izuku/Douglas said
"Okay!" Toga said as she salutes to him.
"So what's the plan?" Izuku/Douglas asked
"The plan is simple we go to a location that our spy gave us, where class 1-A and B along with a few other heroes and find out among who the targets is the successor to All Might and take that person down," Shigaraki said
"A spy? In U.A.? I got to warn Ochako!" Izuku/Douglas thought.
"...Class 1-A Huh...if that's the case then promise me that the girl named Ochako Uraraka doesn't get hurt or killed cause of this attack. If not I'm going to rip the skull of whoever hurt Ochako and beat him to death with it!" Izuku/Douglas yelled with an aura of Conqueror's Haki.
"Wait how can you beat someone to death with their own skull? That doesn't seem to be psychically possible," Dabi said
"You can ask Avalo Pizzaro. Oh wait you can't, cause I killed him," Izuku/Douglas said
"All right enough, Tomura will pass out the target papers to some of you. Keep it a secret from each other," All For One said from a screen.
Villain: Target
Muscular: Ochako Uraraka
Dabi: Shoto
Mustard: Inasa
Spinner: Iida
Toga: Momo
Izuku/Douglas: Mirio Togata and Kastuki Bakugo
"Oh man, I'm so screwed! Maybe I can ask for a trade? No, wait if I ask the boy will kill me just for having this piece of paper," Muscular thought
"So any questions?" Shigaraki asked
"Yeah, what about my equipment?" Izuku/Douglas asked
" I have taken the liberty to retrieved your black jacket, your weird tech cube, and your Dyna caps have also been retrieved," AFO said
"Thanks..." Izuku/Douglas said with venom.
"I hope Ochako isn't one of the targets," Izuku/Douglas thought.
Meanwhile with Ochako
Ochako and Eri were the first ones off the bus.
"WE'RE HERE!" Ochako and Eri Yelled with glee
"All right I hope we will have fun and train! PLUS ULTRA!" Inasa said as he got off the bus.
"Yes, this camp is a perfect idea," Iida said while doing robot arm chops.
"Whatever when does training begin?" Kastuki asked
"Right now as of that," Hisashi said as he stood next to Eri, Pixie Bob, Eraserhead, and Mandalay
As everyone turned around the earth just suddenly moved! Sending the heroes in training to the bottom of the cliff.
"Be okay mama!" Eri shouted
Timeskip 1 to 2 hours later at the campsite.
"You're late," Hisashi with a smug while the Big Three were playing with Eri and Aiziwa sleeping in his sleeping bag.
"You jerk!" Everyone except Ochako yelled
"Oh, hello child! I'm Inasa what's your name?" Inasa said as he ran to a boy with a red hat but Kota kicked Inasa in the crouch.
"Inasa! You fiend attacking a man's lower belt is evil!" Iida Yelled as he had Inasa in his arms.
"Heroes are stupid," Kota said with venom as he walks away.
"That's Kota, my nephew," Mandalay said
"Hi, I'm Eri do you want to be my friend?" Eri ran to Kota and asked with a smile.
"...Sure okay," Kota said as he blushed.
"Yay!" Eri cheered
"All right let the fun begin," Hisashi said with a devilish smile.
Timeskip
At the mountain ledge
Everyone's appearance was the same except Muscular was wearing Don Krieg's armor under his cloak. And Izuku/Douglas' appearance has long spikey hair think of Marada Uchina, tattoos on his arms like scar in Fullmetal Alchemist Brotherhood, his black jacket (from stampede), wears JBL E55BT headphones, wears a white tee shirt with Gol D. Roger's Jolly Roger, black gloves of his hero suit, boots from his hero suit, and black jeans.
"Let's do this thing," Izuku/Douglas said as he jumped down on some unexpecting duo in the fear forest.
CRASH!
"Whoa! What the hell?!" Kastuki Yelled as he got into position.
"Show your self!" Shoto Yelled
"Well I found one of my targets in my first try," Izuku/Douglas said
"N-no it can't be...DEKU!" Kastuki yelled
"So you do remember me, my old friend. Now lets fight I want to see how you progress over the five years," Izuku/Douglas said as the dust settled.
"W-why are you here? No how are you here?" Kastuki said with a shaky voice
"What the? Bakugo is never afraid who is this guy?" Shoto thought
"Just you know this isn't personal. IRON BUILD: SLAM CANNON!" Izuku/Douglas said as he transformed his arm into a cannon and used dirt as ammo think of generator Rex weapons which hits Kastuki.
"Icy-hot we got to run!" Kastuki said in a panic.
"What? We gonna have to fight and," Shoto said calmly
"No, he is very dangerous, powerful, and super smart! If he had a quirk he would be even more unstoppable," Kastuki said frantically.
"Wait he's quirkless? But how did he?" Shoto asked
"He ate a devil fruit. Powerful stuff and he's no joke with or without it our best hope is to find Tintin he may be the only one who can fight him to stand still," Kastuki said
"Then we must run!" Shoto said but was attacked by Dabi's blue flames.
"Go! I'll hold this guy off. RUN!" Shoto said as he clashed flames with Dabi.
BOOM!
As Kastuki looked around he saw Deku right behind him firing.
"In a fight or flight I got to hold out until I see Tintin," Kastuki thought
"Grand Howler!," Kastuki Yelled as Deku was at point-blank he unleashed a massive explosion and ran for Mirio.
"You can't outrun me! IRON BUILD: REX RIDE! Over the years my greatest steal was the Omega-1 Nanite, the Nanites, and the Galvan Mechamorph armor and a good thing too if those scientists continue work on these things then there would be superpowered monsters everywhere," as Izuku/Douglas said as he turned his legs into the Rex Ride (Generator Rex).
"I hope the others are okay," Kastuki said as he ran from Izuku/Douglas.
Meanwhile with Inasa
"Take this villain!" Inasa Yelled as his wind attack took away Mustard's gas and swept him away saving three of Class B and fortunately for Mustard he was saved by Kurogiri's quirk.
Meanwhile with iida
"Take this villain!" Iida Yelled as he kicked Spinner in the crouch. Spinner was also saved by Kurogiri.
Meanwhile with Momo
"Come over here!" as Toga chased Momo and Asui with a knife and a blood-sucking device.
"No! Get away from us!" Momo yelled
Meanwhile with Shoto
"Who are you?" Shoto demands.
"Just someone who hates Endeavor," Dabi said as he preps his flames.
Back with Kastuki
"Hey first year what's happening?" Mirio asked
"Help! Pirate!" Kastuki yelled as he ran.
BANG!
The cannon fired.
"Okay HHAAA!" Mirio charged at Deku and use his quirk permeation to go through one of Deku's cannon fire.
"So he's the strongest of UA interesting," Izuku/Douglas thought as he turned his arm and legs back to normal and ran for Mirio.
"Armament Haki!" Izuku/Douglas yelled as his arms were covered in black metallic-like armor.
"POWER!" Mirio Yelled as his clothes phases through him.
As the two get closer and closer Izuku/Douglas' punch connected with Mirio's body which sends Mirio back to a tree.
"Surprise? You're like every logia user even though you can't be touch doesn't mean there are other methods," Izuku/Douglas said.
"Hey, Kastuki how about we team up and take down this villain," Mirio said as he got up.
"Yeah, sure but I think he prefers pirate than a villain," Kastuki said as he prepared his attack.
Izuku/Douglas ran at the two and turned his arms into giant robotic fists imagine Generator Rex.
"IRON BUILD: SMACK HANDS!" Izuku/Douglas yelled.
As Izuku/Douglas threw several punches a few gotten Mirio and most on Kastuki.
Kastuki unleashed a few more explosions at Deku.
BOOM! BOOM!
While Mirio tried to trade attacks with Izuku/Douglas at the same time as if he knew what will happen.
"You will punch with your right..." Izuku/Douglas dodge as he speaks.
"...Then you will use your quirk to tried and uppercut me," Izuku/Douglas said as he moved back.
"H-how do you know?" Mirio said as he was out of breathe.
"I just dodge and now Armament Haki Smack Hands!" Izuku/Douglas yelled as he covered his robot arms in haki and pinned down Mirio to a tree.
As Mirio was pinned down on the tree Kastuki was stuck in the ground. Before Izuku/Douglas plans to give Mirio the final blow he asked a question.
"So I have a question All For One wants me to find and eliminate All Might's successor," Izuku/Douglas said
The two heroes eyes widen.
"Ochako/ Round face," Mirio and Kastuki thought
"But I have no intention in that. I just used this opportunity to find Ochako and protect her from this invasion. Huh? What with your faces?" Izuku/Douglas asked
"Deku y-you didn't know? Round face she's..." Kastuki tried to say the words but can't.
"...All Might's successor..." Mirio finished the sentence.
"What?..." Izuku/Douglas said in awe as his future sight Haki activates and saw Ochako fighting Muscular with a boy with a red hat protecting ERI?!
"You're right...I have been tricked... and now Muscular will be the first one to pay," Izuku/Douglas said with venom in his voice.
"IRON BUILD: PUNK BUSTERS!" Izuku/Douglas yelled as he turned his legs into the mechanical legs from generator Rex and jumped.
"I'm so glad he didn't kill us," Kastuki said as he helps Mirio.
"Who was that guy," Mirio asked
"That my friend is Douglas Bullet "the Demon Heir", and may God have mercy on the one who is targeting round face and unicorn," Kastuki said
Meanwhile with Ochako
Ochako was breathing heavily by using One For All busted her right arm but glad Kota and Eri were alright.
"Wow, you almost broke through my armor not! And now died brats!" Muscular Yelled as he ran for the kids for only Ochako to kick him but continue to go for the kids.
"Kota I'm scared," Eri said while hugging Kota.
"Don't I'll protect you!" Kota said while planning to take the hit.
"KOTA! ERI!" Ochako screamed.
"Deku I wished you were here," Ochako thought
But then...
GRAB!
As someone grabbed Muscular's arm.
CLUTCH!
"What?! Who dares?!...what uh Douglas! What are y-you doing here? Muscular said with worry
"Deku is that you?" Ochako thought.
"What the hell were you doing?" Izuku/Douglas demands and unleashed conqueror's Haki at the man.
"He is just a kid I don't care whoever this kid was. I bet the stories about him were greatly exaggerated," Muscular thought
"I was doing my job BRAT," as Muscular finished his sentence Izuku/Douglas punched the gold wood armor and broke with a single punch.
CRACK! CRACK! SHATTERED!
"How could you crush my armor with a single punch the stories were true well done... IS THAT WHAT YOU WERE YOU EXPECTING ME TO SAY! YOU FOOL!" Muscular said
As Izuku/Douglas prepared himself for anything.
"THIS ARMOR WAS JUST FOR DEFENSE MY FLESH IS MY TRUE ARMOR WITH MY QUIRK AND HAKI COMBINE IT IS MANY TIMES GREATER THAN STEEL NOW WHAT WILL YOU...Ugh!" Muscular yelled
Then Izuku/Douglas used an armament Haki lunch to break through muscular Haki armor and pierced through his skin as Muscular's mouth bleeds.
"I had no choice cause you hurt someone I care about..." as Izuku/Douglas removed his fist from the body.
"...but don't worry you won't die...HHAAAAA!" Izuku/Douglas said with a cold tone as he threw him off the mountain but a portal opened which saves him.
"H-help me..." Muscular said into his communicator as he disappeared into the portal.
"..." everyone in silence
"It's good to see you Ochako-Chan," Izuku/Douglas said with a calming tone.
"DEKU! YOU IDIOT I MISSED YOU!" Ochako cries as she jumps into his chest.
"Don't cry why for I am here," Izuku/Douglas said in a calming voice.
And so Izuku Midoriya also known as Douglas Bullet the Demon Heir is truly free but unfortunately this will be temporary for the events that transpire will once again change everything just like five years ago.
To Be Continue...