Before getting started on this, I would like to say that I'm setting the One Piece characters after the treasure has been secured by the Strawhats, since the Pokemon Gods have returned, there's no Egghead Incident, or mishap at the Reverie, and other things involving Blackbeard never happened. 

And I'll be doing something a little interesting.........

Read to find out!

Let's begin!

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It all started as another day for Class 1A as they headed off to the USJ.

They were to learn how to save other people's lives but then villains appeared.

Izuku found himself with Tsuyu and Mineta in the Flood Zone, as they were on a ship surrounded by water villains. 

However, whether it was fortune or misfortune, a strange portal appeared above the Flood zone, only, it did not resemble the Mist villian's quirk.

With a crack, something crash-landed in the water.

The water villains scrambled to get away, only for them to see a large.........pirate ship with a lion figurehead.

"What the heck is that?"

"Is that backup?"

"No way, boss would have told us."

Then, a group of people started to emerge.

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"Hey, where are we? Robin?"

"Hm. We appear to be in some kind of facility, nothing I've seen before.......but there are kids in trouble across this place."

"Oh, so they're bad guys?"

"Looks like it, Luff."

"Yohohohoho! Picking on kids? Guess they have nothing better to do."

"If I had to guess, there are maybe less then 80 of them here."

"Guess we gotta help, right Pachi?"

"Pachirisu!"

"Robin! Hold them down, Nami, you know what to do!"

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Suddenly, to Izuku, Tsuyu, and Mineta's shock, arms suddenly appeared on the villains grabbing their heads and bodies. 

"Wha?!"

"What's happening?!"

"Is this a quirk?!"

"CLUTCH!"

That caused them to bend over in pain as they were knocked out.

"Blizzard Tempo, Freezer!"

Then the shipwreck zone froze over, leaving only the boat intact, and the villains were stuck.

"Wow! We didn't have to fight! I told you the pros from U.A. would come to save us!" Mineta cheered.

"But wait Mineta, none of them are our teachers, and I don't remember them on the news either," Izuku said as the people of the lion ship approached them.

They were a strange-looking bunch...

A man with black hair walks around in jeans and an open shirt, wearing an orange cowboy hat and freckles.

A woman with light purple hair and blue eyes, standing next to the freckled male.

One looked to be a pink-haired woman, munching on a piece of pizza. 

A woman with orange hair in jeans and a bikini top, another woman with long, black hair.

A blonde man in a suit and a swirly eyebrow.

But there were some strange people too.....

One looked to be more fish-like than human, a fish mutation quirk?

A.........................skeleton with an afro?!

A man with moss-like hair, and he was carrying three swords, was he a swordsman?

Another man, but he had a long nose that somewhat reminded him of Pinocchio.

a strange looking animal...........was that a racoon.....no a reindeer of sorts, but it was walking.....was it a quirked animal like their principal?

A guy with light blue hair in a strange hairstyle, he had large robotic arms, and........was he wearing a speedo?

The last two people stood out to Izuku the most.

A female with hair so white he thought it was ethereal, purple-blue eyes that made him think of space and galaxies, and a strange-looking squirrel on her shoulder. 

Next to her was a black haired male, maybe a little older than them, he was sporting a strawhat, a scar under his left eye, and a large x mark across his torso. But he also had a large smile that reminded him of All Might's, but his was a lot more carefree.

"Hey! You okay?" the strawhat asked.

"Ah, yes actually. Thank you." Izuku said.

"Man, you saved us! We thought we were dead meat!" Mineta said then he spotted the orangette, the raven, the brunette and the whitette.

Thankfully, Tsuyu hit him to the ground, knowing what he was going to say next.

"Guess we ought to get out of the shipwreck zone......or ice zone now. Ribbit." She said.

"That's right. We need to get out of here and get help." Izuku realized.

"Help?" The whitette asked.

"Ah, well, villains are attacking and our teacher may need help." Izuku said looking to the plaza.

"Mind if we help?" The freckled raven asked.

Huh?

"Robin. What you got?" The orangette asked.

"Yeah, the kids are outnumbered, they are fighting, but at a slow pace. Someone is blocking the only exit. And the man I'm guessing is your teacher is starting to wear himself out."

"Mr. Aizawa!" Izuku realized.

"Don't worry, we'll help." The whitette told them.

"What?! But these are villians-"

"Heh. We've faced worse that this." The green swordsman said, itching for some action.

"Alright, Luffy, you're coming with me to the plaza. Jinbe, you think you can get to the front entrance to help?"

"Of course, Yukiko."

"Alright, Everyone, we leave the rest to you. Spread out." Yukiko said as she unfroze the ice and rounded up the incapacitated villians.

None of the Villians knew what would hit them next!

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At the Mountain area.....

Momo, Jiro, and Kaminari were having trouble when they heard a yell.

"Midori Boshi: Take Javarin!"

Suddelly, large bamboo burst from the ground, catching the villains off guard, sending them into the air.

Then a large green wolf appeared out of nowhere and released a powerful shockwave. 

"Impact Wolf!" Usopp smirked as the villains were all brought down.

The three students however, were stunned.

"Whoa! That was so cool!" Kaminari asked.

"Y-yeah." Jiro said still stunned.

"Well, thank you sir."

"No problem, anyway, we should get you to safety." The long-nosed man said.

"Wait we need to find the rest of our classmates-"Momo said.

"No need to worry. My nakama is here, and they will help." Usopp smiled reassuringly.

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At the Windstorm area...

"We're reducing their numbers, but slowly."Tokoyami said.

"There they are! Get them!" Some villains said.

But then......

"Zeus! Thunder Lance Tempo!"

Then the villains were taken down by a vicious blast of thunder, surprising Tokoyami and Koda.

"Ah, we made it in time." Nami said to Chopper who came along.

"You alright? Any injuries?" Chopper asked.

"Ah, no we are alright, thank you."

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At the Fire Area........

It took Ace no time in finding the Ojiro kid, and the villains basically were helpless against the fire user.

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At the landslide area, Shoto was surprized to see a skeleton of all things freezing villains with a sword as he was humming. Along with a pink-haired woman that, to his shock made some age into old men, and they couldn't move.

"...............I never knew a skeleton could have an afro."

"Oh my roots were very strong.......but still, why did so many villains attack here, if they were not strong enough?" Brook asked.

"Yeah, I've seen rookie marines tougher than this." Bonney said.

"They're just pawns. From what I could tell, there are only three really dangerous people here. We need more information." Shoto said as he turned to face a frozen villain.

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At the entrance......

Kurogiri did not know what just happened.

One moment he was facing against the rescue hero Thirteen and about to use a warp gate on them with their quirk, suddenly, he felt he got body-slammed by something massive.

"Who dares disturb my mission?"

"What i should be asking is what do you think you are doing?" A large fish-like man said. He was wearing a kimono of sorts and he looked almost ten feet tall. And ready to attack again.

Kurogiri thought he would have nothing to worry about as he was a Mist man but he suddenly got a strong fist to the gut, and was sent flying. "ACK! How did he-? Ah!" He then noticed the armored student trying to open the door, getting help.

He rushed to stop him, only to be stopped by the fish-man again, who had grabbed him somehow.

"Same Gawara Sei Ken!" Jinbe said as Kurogiri recoiled from the painful impact, sent flying, and was coughing.

"Not only did he grab me, he was able to hit me! How?! And even worse.........that student got away...." Kurogiri said to himself. "That look in his eye......he's not an average fighter.......he's a veteran."

Back at the entrance, the students were shocked as this fish-man fought against the Mist villian like he was nothing.

"Anyone injured?" He asked.

"Ah, no, but thank you, um....." Thirteen said.

"Jinbe."

The other students began to ask how he fought against the Mist man they had trouble with in amazement.

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At the Collapse zone

Zoro looked around and muttered......"This isn't the plaza."

"Hey who's that?"
"Don't know, but just because he has 3 swords doesn't mean he can kill us. Get him!"

Zoro just got his swords out.

"Kokujou Oo.......... Tatsu Maki!"

That created a large tornado that sucked up the villains and began slicing them.

"Aaaaaaaaaah!"

"What is this?!"

"It's like a hurricane of blades!"

"When will it stop chasing us?!"

"It'll chase you to hell." Zoro said as the villains screamed in fear.

Two boys then came out of the building.

"That was awesome!" A redhead yelled.

Bakugou just stood there with a frown. He could tell this guy is strong.......stronger than them. Well, least he's on their side.

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At the plaza,

Kurogiri suddenly appeared to Shigaraki.

"Kurogiri? You're back too soon. Did something happen?" The hand villain asked.

"Yes. There were students I was unable to disperse, and I was unable to kill Thirteen. An unknown party intervened, and somehow hit me dead on. The worse part is one student was able to get away." Kurogiri said.

The hand villain started scratching his neck furiously. "Kurogiri.......if you weren't our way out, I'd tear you apart!..............ah, well. I suppose we could break some pride of U.A..........Nomu..........kill Eraserhead." He said as the creature rushed at the exhausted pro..........

Only to hit a hard hit in the face!

"Gum-Gum.....Jet Pistol!"

The Nomu hit the ground which also had a large crater from the impact.

"What?!"

Eraserhead was also surprised.

"Pachi! Play Rough!"

A squirrel creature suddenly appeared and roughhoused the other villains.

"Prism Dragon!"

Suddenly, a dragon made of Prism jewels attacked the hand villain  making him fly by a couple of feet.

"Ah! What? Was that the pros!?"

Then he saw two people, a man and a woman, probably his age, facing him.

"Who the heck are you two? Third-years or something? Whatever. Where's All Might? We only have buisness with him."

"We don't know this All Night, but we can't let you do what you want." Luffy cracked his knuckles.

"Well, we were expecting him, not you for the continue level!"

"Well then consider this a free tutoral." Yukiko said ready to fight. "You handle the brain creature, I'll fight hands, and Pachi will fight the Mist man?"

"Sure." Luffy said.

As the battle started, Luffy used Second Gear to fight against the Nomu.

Pachi had to be creative around Kurogiri, using his electric attacks and Secret Power, mixed in with haki.

As for Yukiko, she kept up with the hand villain by avoiding his decay with haki and something else.

When Shigaraki grabbed her neck fully, he expected her to decay, but she didn't.

"What?!"

"Haven't you heard that diamonds are forever?" Yukiko smirked as her neck had been covered by diamond.

Yukiko then had her forehead covered in diamond, "Diamond Masher!" She said headbutting him, making him let go.

"This is not fair! This is obviously a hack!" He screeched.

"Here's a lesson for you, we females never fight fair." Yukiko said as she used Armorment Haki against him as she threw punches.

Suddenly........

Everyone witnessed Luffy taking out Nomu with a strong Third Gear Giant Pistol with Haki, and the creature was sent flying out of the dome.

"No.     

Nononononononono! How did Nomu lose?! He had to have cheated!" Shigaraki screeched.

Then the door blasted open to reveal that some kind of backup arrived.

"Oh, great the pros arrived with All Might!" Shigaraki said as they had to make their escape. "I swear this isn't the end! I'll make you all pay for meddling!"

And the two villains vanished.

Whether the world knew it or not, this day marked some change for 1A.

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Yeah, I'm making Bonney a Strawhat! And Alina and Ace are along for the ride.

I'll be doing this side story for a couple of chapters, hopefully, longer than the last ones.

Plz comment!