I dont own Dragon ball Z or My Hero Academia. They are own by Akira Toriyama and Kohei Horikoshi respectively.

Quirk Killer Bullets and Trigger- The Quirk killer bullets are bullets with the tip containing a substance that once hit by it, you will lose your quirk forever while Trigger is a drug that can amplify quirks but the side effect is you losing your reasoning and thought patterns when your on the stuff. Officially, the 2 drugs are banned and condemned by the government however they have use their black market contacts and began stockpiling the drugs with Trigger being given to 'heroes' that only care for their ranking and pay while Quirk killer is given to prisons to be given to B ranked or higher criminals. All For One and any similar quirk users are to be ranked S threat level and detained immediately.

This is the original Broly. Everyone's favorite KAKAROT screamer. Most of Broly's story is based on the original movie and the fan made manga Dragon Ball Multiverse by Salagir.

Broly's Memories

(Decades ago, New Planet Vegeta)

"KAKAROT!" A scream louder then any hurricane or tidal wave can be heard for Izuku as he sees the savage fighter: Broly beating the hell out of these warriors. The All For One user has watch Broly's memories and past and Izuku can honestly say that he fears his power and if he came to his planet he could kill All Might and any hero or villain with ease. He is glad he died somehow. Broly was born with energy that surpass any other of his species: The Saiyans. He saw the king try to kill the baby but it failed and even survived a planet's destruction. Since then, his father Paragus has turned his son into a mindless beast with no care for others. The green haired kid was pretty happy that he got to see worst father in the galaxy get crush by his son.

'Holy crap, he definitely succeeded in creating a devil.' Izuku thinks to himself as Broly headbutts Piccolo and clothesline Trunks and Gohan without mercy. These people are trying all of their powers but its having no effect. The one that cause Broly's psychotic episodes is Kakarot, now named Goku is definitely in pained.

'Although, the reason Broly went insane was pretty dumb. Seriously you go crazy because you heard a baby cry is a terrible backstory.' Izuku think again 'Hm? Seems like Goku, the moron is trying something besides charge at the green giant. He may need to hurry, that comet is going to hit the planet. Lets see what he has plan next.'

"Everyone, im going to use the Spirit Bomb! Give me your energy and we can defeat Broly!" Goku says with a grin as he raises his hands. His friends reaction and Izuku's thought on each one:

Piccolo(Green slug guy)- "Goku you need to hurry! He is getting stronger the longer he is in this Super Saiyan form."

Vegeta(Guy with the largest widow's peak Izuku has ever seen)- "Please! The Spirit Bomb has never killed anyone. Im the best example."

Gohan(Daddy's boy that whines to much)- "I trust my Dad. He can win! Take my energy Dad!"

Krillin(Loser that makes Izuku's old self seem like a movie star by comparison)- "If it means we can win and get off this planet, then im all for the Spirit Bomb."

Trunks(Guy that was Broly's bottom bitch during their fight)- "I know that if we beat this monster then Cell can be defeated as well."

Everyone but Vegeta raises their hands and gives him their energy. He seems to be arguing himself with him ending with a yell.

"AAAHHH! Damnit Kakarot, you better kill him or I'll haunt you when we are in hell!" With that he raises his hands as well and gives him his energy. The giant ball above Goku's head is getting bigger but it looks like Broly is about to charge however a shout seems to give the giant pause.

"Broly! How dare you kill me, your own father!" Paragus, the person that was suppose to be dead appears in front of Broly and confuses him, as does Izuku. 'Wait, where is the pig? The old man is unconsious over there so could it be..' Broly starts glaring at Paragus with the father starting to freak out.

"AAHH! This was a terrible idea." He transforms to reveal the pig and Goku's Spirit Bomb is complete.

"Get down Oolong!" Goku says with a yell as he throws it with the pig doing just that. Broly has no chance to dodge and gets hit with the ball and heads straight to comet, then...

(End of Flashback)

(Yaoyorozu Basement)

"AAHH!" Izuku feels pain on his back and kneels to the ground as he is forced out of the flashback. He touches his back and feels a liquid and a burning sensation. 'Wait is this Acid?' He thinks to himself as he looks behind him and sees Sir Nighteye checking Jack to see if he is alright. Meanwhile, he spots a blond with the number million on his costume looking ready to fight him and a beautiful girl that looks to be around his age. Her pink skin with cute raccoon reminds him of a princess from another planet but there is something familiar about her...

"All For One! Surrender now and maybe you will get a lighter sentence!" Shouts the blonde as he charges at Izuku however he is prepared. He jumps to the air, luckily the roof is 10 feet, and uses the Density Quirk. "Eat this boy! 10,000 Pound Slam!" The new weight makes his fall faster and with this weight, it would rupture a person's organs but as he get closer, the kid doesn't looks to be stopping. If anything he is running faster and then he goes through Izuku's body and then he turns around and punches him in the back of the head.

*CRACK*

He drops to the ground. 'Damnit, he broke the back of my helmet.' Midoriya thinks to himself as he gets up with Nighteye giving him a smug look.

"Mirio is my greatest student and I personally trained him to break granite. He should have been the One for All user and can still be once we turn you in. Ashido stand back and observe as we win this fight." He walks to the fight with Mina shocked that her teacher wants her to do nothing. "But teacher, it would be better if..." "Ashido!" Nighteye shouts as he interrupt her "That is an order! You are to stand there NOW!" He says with force as she looks down and watches the fight.

"You should teach and respect both your students, not favor one from the other." Izuku says with his All for One voice as he thinks to himself. 'Good thing the voice filter still works.'

"Shut it! Why should I take advice from a freak like you!" Nighteye yells as he throws his stamp seals but the All For One user dodges the seals but Mirio kicks his feet and sidesteps with him about to hit the floor but he grabs the floor first to a handstand, kicks Togata and backflips to his feet. However before he can continue the fight, he goes Mina first with her being scared that she is about to get hit but all he does is tap her forehead. "A princess like you should not see this." Before she reply, he uses Jill's quirk Teleportation and sends her out of the basement and into the destroyed mansion. "There now I can go out." He says as he doesn't want her to get hurt for some reason. "Air Cannon Whirlwind Combination Attack: HURRICANE HELL!"

(A few miles from the mansion)

All Might is running to the Yaoyorozu mansion after hearing about a explosion there. He starts to shivers a bit and senses something at the mansion. 'Is that All for One?' He learn to sense the All for One quirk and so he runs faster.

(Within the destroyed Mansion)

Mina Ashido just landed on the destroyed mansion, surprised that All for One, the most wanted villain in Japanese history, just took her away from the battle. But She isn't angry as she feels weird that it feels like she meet the villain somewhere years ago and the green hair that came out of his helmet reminded her of someone. Plus she has not like Sir Nighteye since working at his agency, as he hasn't trained her at all and his sidekicks Bubble Girl and Centipeder have said that he has focus on Mirio since he joined them and neglected their training as well. He clearly was trying to train him for something and get something called One for All was it. At least Mirio was nice and didn't know about the favoritism.

BOOM!

Suddenly the ground began shaking and out came a hurricane out of the ground with Nighteye and Mirio flying out and landing hard to the ground. All for One jumps and lands on the ground with ease. He goes to check the two to see if their alive however Mina yells without thinking "Hey! How come you teleported me away and not get hit by your attack?" Midoriya looks at her and answers:

"I didn't want to see you hurt. I want that man to pay and taking his quirk is the perfect punishment. Thanks to Mr. Yaoyorozu's memories, I know his greatest crime." Mirio looks confused and Nighteye's eyes pop out as he is shocked that someone knows his secret. But Midoriya begins to shake as he senses All Might 'I was right, due to the connection between both quirks, the users can sense and notice each other but they have to be close. Maybe a mile or two.'

"Wait," Lemillion says "What did the Yaoyorozu family and Nighteye for you to attack them?" Nighteye tries to get up but his left leg is broken due to landing on it from the fall.

"Mirio! Do not listen to him! He is a liar and thief!" He yells out trying to convince him to not listen.

"He is the one that help this family become the billionaires everyone knows them to be. He uses his quirk and some Trigger to know future lottery numbers and stock market values. He also 'arrests' people that are the family's competitors in exchange for a percent of the cut and also haven't you notice that most of the criminals and villains you defeat just so happen to have Mutant Quirks and he was a member of the Creature Rejection Clan, an anti-mutant quirk group. I know that you were jealous that you weren't given One for All and wanted to make Togata over there get One for All."

"Your right you monster! My plan was to let Togata be the One for All user, then he would be killed by those mutant freaks and I would be the next user by making him loyal to me and me alone with him giving me One for All before he dies!" Nighteye says with madness in his eyes.

"Wait, what about Bubble Girl and Centipeder? Is that why you ignore all 3 of us?" Mina shouts with anger as he grabs his shirt and interrogate him with Midoriya answering for him.

"The plan was for Mirio to die when he became the #1 hero and the mutant sidekicks were going to be scapegoats and blamed and then anti-mutant quirk sentiment would increase. The Yaoyorozu family knew this plan and endorse it but I don't know if your classmate Momo knew this plan." He quickly adds as she looks shocked and betrayed as he doesn't want her to distrust her classmate. Nighteye seems to be start talking, unknown to him was that Mina had her phone out and started livestreaming shortly before Izuku explains Nighteye's plan.

"I was suppose to be number 1 hero and instead all I was the sidekick. Well not anymore! I would hold those two like leashes and when the time came, Mirio would be the number one hero and his death would rally everyone against the mutants due to my sidekicks attacking him."

Izuku continues "He would no doubt have someone that has a mind control quirk and make them carry the deed." The deranged hero answers by looking away from Mirio, who was shocked that his teacher would do this. He closes his and without warning, punches Nighteye knocking him out. "Go, if you take his quirk will you not hurt anymore people." He says hoping to negotiate and cause no more fighting.

"Very well, I promise to not fight and leave for today." He says as he walks to the ruined hero as thanks to Ashido, now everyone knows All Might's former sidekick's plan and now people are starting to cheer for All for One to make him pay. Togata steps aside as he agrees with this. He grabs Nighteye's head and begins absorbing Nighteye's quirk: Foresight. He senses something on his right side and uses Diamond and Density Quirk straight to his body. 'Ultimate Defense, That will be this new move.' he thinks as he feels a punch straight to his face.

"DETROIT SMASH!" The All for One helmet begins breaking and the force causes Izuku to go flying straight forward and since Mina was right behind him gets hit and flying with him. Luckily he uses the Density quirk at the last second to soften his body and so Pinky didn't get hurt that much. The two however are flying with Izuku using the Warp Gate quirk to create a black portal, taking away both of them and away from the mansion.

"Have No Fear! Because I'm Here" All Might shouts his catchphrase and normally that would cheer people up but all there was, is that there is only Mirio standing and a number of heroes unconscious or injured.

"What Happened?" He can't help but asks with Mirio looking at him and just saying with a tired smile:

"Its a long story."

(Within Izuku's Hideout)

The two are landing out of the portal with Midoriya losing the broken All for One helmet, with his face being shown. Mina is dazed but the second she sees the thought to be Symbol of Evil's real face, she starts to tear up.

"Izuku is that you?" He looks at her but now he starts to remember now.

"Mina..." He starts to cry as well. They look at eachother and then hug immediately as they speak together as one:

"I miss you."

And thats a wrap! What do you think mates? Be sure to follow and fav for more stories and chapters.

Next Ch. The Two Lovers Past and the end, aftermath, and reactions of the Yaoyorozu Assault.