(Y/n) was taken aback. His mind flashed back to the stories he'd heard about Eri, the girl with the tragic past, and suddenly he felt a surge of rage and the words she said....

Please....Please don't go!

They hurt me......

remembering that made the toddler teen burst in anger.

(Y/n):THOSE MONSTERS WHO HURT ERI! LET ME AT 'EM!

He screamed, his voice echoing through the room. His heart raced, filled with anger and the longing to protect.

As the conference unfolded, the gravity of their situation became clearer. The heroes spoke of the Yakuza's nefarious plans and how Eri was being used as a pawn. The revelation that Gran Torino was investigating the League of Villains left (Y/n) with a feeling of helplessness. The stakes were higher than he had ever imagined.

The discussion turned grim as they learned of the Quirk Cancelling bullets and their effect on the Meta Factor. Fat Gum's revelation about Tamaki being shot only intensified (Y/n)'s determination. This was no longer a game; lives were at stake.

Realizing the weight of their earlier decision to leave Eri behind, the room filled with a sense of urgency. The Kurosurenjā team and their classmates rose, united in their resolve to save the girl. (Y/n)'s determination surged through him like a wildfire.

(Y/n):LET ME GO, NOW! I'LL SAVE HER, EVEN IF IT MEANS MY LIFE!

he declared, his eyes blazing with intensity. The room fell silent, and fear rippled through his friends. This wasn't the carefree child they had known; this was a young man transformed by his wish and the reality of their world.

As the heroes prepared their plan, (Y/n) felt a blend of anxiety and determination. He longed for the days when he could simply wish upon a star without consequences. Yet now, he knew what he had to do. The weight of the world rested on his shoulders, but he would rise to the occasion.

With newfound purpose, (Y/n) and his friends began their quest to confront the Shie Hassaikai. He realized that sometimes, the wish you make in innocence leads you down a path of responsibility and heroism. This was his new life, and he was determined to make it count.

And as they stepped into the unknown, (Y/n) couldn't help but wonder if this was what being a hero truly meant—a journey filled with trials, sacrifices, and the chance to protect those who could not protect themselves.

He had wished for heroism, and now he would embrace it, no matter the cost as Everyone knew the innocence of the toddler he once was; they could see the flicker of that child still shining in his eyes, now mingled with the fierce spirit of a young man who had grown too fast for his own good. Lotte, Ishimaru, and Yagyu exchanged glances filled with worry.

(Y/n):Let me go, now!

(Y/n) insisted, voice trembling with desperation. The pressure of high school and the expectations of a hero-in-training felt like chains around his heart.

Ryukyu:Going alone is suicide-

Ryukyu cautioned, her eyes filled with concern but

(Y/n):I DON'T FUCKING CARE!

(Y/n) shouted, the raw intensity of his emotion shaking the very foundations of the room as The weight of his words settled in the silence that followed. Bakugou looked at him, the heat of his own fierce resolve reflected in his eyes.

The words erupted from him, shaking the very foundations of the meeting room. Silence fell, and all eyes turned to him, witnessing the struggle of a boy who had become a man too soon as Bakugou, always fiery and unyielding, stepped forward.

Bakugou:You think you're the only one who cares? We'll go together.

His words ignited a spark within the room, shifting the weight of despair to a flame of resolve.

Lotte chimed in...

Lotte:YEAH!We're ALL Going to save her,(Y/n)!

Yagyu:And don't try to stop us....

Yagyu added, determination etched in every word.

Ishimaru:Because we'll follow you to hell and Back,if we have to!

Ishimaru's voice resonated with an unwavering spirit.

In that moment, a powerful bond formed between them, uniting their spirits under a common cause. The classroom chatter and the whispers of concern faded away, replaced by a chorus of unwavering resolve. The friends stood together, ready to face whatever darkness lay ahead.

And as the heroes-in-training prepared to confront the horrors of the Shie Hassaikai...

(Y/n) realized that perhaps being a hero meant more than just having powers—it was about the connections they forged and the willingness to fight for those who couldn't fight for themselves.

Together, they would rise, and together, they would save Eri. They would prove that they were not just students in a school but true heroes in the making. And as they stepped out into the world, determination filled the air—a promise that they would not let the horrors of their wish consume them and After a somber exchange, the meeting concludes with all the heroes agreeing to investigate. The Kurosu Academy students meet in the back, saddened by the state of the girl.

Shota Aizawa arrives and encourages his students to keep fighting, truly believing they can save the girl next time. Sir Nighteye and Gran Torino meet to discuss Izuku as well as (Y/n), and Nighteye admits that the young boys reminds him a lot of All Might.

Izuku regains his confidence and is determined to rescue Eri as (Y/n) Cracks his Knuckles,Ready to do whatever it takes to save her!

Meanwhile, Eri's new caretaker tries to cheer her up but not because he cares,because He worries that he'll be killed by Overhaul,if he fails to tend to her or if she attempts to run away again.

She cries in bed and thinks about (Y/n)'s warm embracing touch. She's never felt a hand so kind before and is suffering under Overhaul's watch.

https://youtu.be/n6ayMtMwz-A

we see (Y/n) as he stares off into space before he turns around and looks at the 4th wall as the title appears in the sky made of clouds..

'BIG'

we see (Y/n) as he ran towards the sky and began flying as the song began

Dokkan Dokkan tsuiteru!

we switch to the class as they all train and relax for their next battle as we see (Y/n) having his Kurosubasutā as he holds two cards but who's on them isn't shown.

Dokkan Dokkan Paradise

we see the teachers looking on at the students from above as our toddler teen smiles at them.

Genkidama ga hajike tobu ze Go Go Let's do it

it switches to the class prepping themselves for something as they all look determined.

Ugomeku ayashii enajii

Bakugou is shown at a gym,practicing his quirk and physical strength as ishimaru looks at a picture

Yousha wa shinai ze mitero yo

lotte was shown reading before training in combat magic as she fires at many fast moving targets before showing Ikaruga training her swordsmanship.

Inochi ni kaetemo mamoru yo

Yagyu jumps from an aircraft and falls onto our toddler teen's shoulder as they fly through the sky.

Ai suru yuuki wo tsuyosa ni kaero

it shows the duo flying off before showing silhouettes of enemies,old and new.

Yari nuku kiai de pinchi wo koeteku

(Y/n) is shown wearing a Gi as someone trains him but they aren't visible except they have a halo.

Tegowai yatsu hodo wakuwaku mo dekkai ze

(Y/n) and the others are shown transforming into the kurosurenjā team before forming the Kurosukaiser as the rest of the class panic with Iida reprimanding them.

Dokkan Dokkan tsuiteru!

Many old foes appear as bakugou striked them down with his quirk,ishimaru with his bare hands,Yagyu with her umbrella,lotte with her magic,Iida with his engines,issei with his sacred gear.

Dokkan Dokkan chansu sa
Rakkii no kaze ni byunbyun notte

the class are all shown in their hero/battle outfits as they all do a charge attack at the 4th wall and shows MANY people from other schools

Dokkan Dokkan tsuiteru!
Dokkan Dokkan ashita mo

Kotae wo mou tamashii wa shiteru no sa Dragon Soul!

the class appears as they look at the 4th wall before it zooms in on (Y/n)'s face as his innocent smile turns into a cocky smirk.
__________________________________________________________________________________________________________

The next morning at 8:00 AM, in front of the Police Station, Heroes partaking in the rescue operation have been given detailed information about the Shie Hassaikai's secret complex underground facility; including the shortest route to Eri's location as well as all the information available of Quirks registered of Hassaikai members. students are nervous and eager about the rescue operation. Izuku Midoriya wonders where is, and Nighteye and a police officer inform him that he is unable to attend the operation due to something coming up involving the . Once everyone is ready, the operation is set in motion.

Meanwhile, at Shie Hassaikai headquarters, after being informed that the latest movements of the authorities indicate that they are preparing to assault the mansion, goes to one of the rooms, where he meets with an old man who he calls "Pops", who's in a coma, and apologizes to him because things might get a little noisy soon.

Ryukyu takes on Katsukame.

At 8:30 AM, the Heroes and Police Force are outside the Shie Hassaikai's Headquarters and commence the operation. One of the police offices goes to press the intercom to read the warrant to the Shie Hassaikai when suddenly bursts through the gate, sending some Policemen flying, being quickly rescued by Eraser Head and Deku. wonders, surprised, if the Shie Hassaikai had anticipated his arrival.

Rikiya demands to know the reason for their presence and prepares to punch them with his overgrown muscles. transforms into her form and intercepts the punch with her draconian claw, to quickly knock down Rikiya. Ryukyu assures her agency can deal with the villain and asks the other groups to rush to the hideout. The other Yakuza members don't back down and a battle ensues outside the hideout. While the minor heroes hold them off, Sir Nighteye leads the main charge to the entrance.

Meanwhile, Overhaul and prepare the to hold off the heroes until they can escape with Eri and their research But (Y/n) didn't hesitate. This was his moment.

With a shout of determination, (Y/n) transformed into his Kurosuāmā, entering the Fenikkusunaito sutairu with a speed that seemed otherworldly.

Bursting through the Walls, he tackled Overhaul, the leader of the Hassaikai, just as he attempted to flee with Eri.

(Y/n):Eri!

(Y/n) exclaimed, his heart racing as he scooped the frightened girl into his arms. She looked up at him, her wide eyes filled with fear and hope.

(Y/n):It'll be okay, Eri. I'm here!

Chisaki:Give her back, NOW!

Chisaki, a.k.a. Overhaul, growled, his rage palpable.

With Eri safely harnessed to his back, (Y/n) met Chisaki's glare head-on. The weight of responsibility pressed against him, but he felt a spark of courage igniting within.

(Y/n):Want her? Come and get her!

(Y/n) challenged, adrenaline surging through his veins.

In that moment, he realized that the wish he had made so long ago had not only transformed his body but had awakened a hero within him. The battle that ensued was fierce, but (Y/n) fought not just for Eri, but for the life he once cherished—the simple joys of childhood.

Overhaul, momentarily stunned by the turn of events, attempted to strike back, but Eri's emerging power threw his focus off. In that moment of distraction, Deku inadvertently unleashed a shockwave that shattered Overhaul's carefully constructed pillars, sending him and Eri into the air.

As they soared, Izuku realized the chaotic nature of his own power—he hadn't been injured despite pushing One For All to its limits. Below, Overhaul, driven by desperation, began to merge with Rikiya, creating an even more monstrous form.

Chisaki:Your precious girl is a weapon, and I will have her back!

he snarled, his voice distorted by the unnatural fusion.

But Nighteye, despite the impending dread of his foresight, declared,

Nighteye:I'll take care of (Y/n). He poses a greater threat.

His confidence wavered as he contemplated the revelation of the twisted fate awaiting them all. The minor heroes, worn and weary, nonetheless rallied together, determined to rescue (Y/n) and Izuku.

As Ryukyu and Ochako aided Nighteye to the surface, Izuku landed safely, his thoughts racing. Eri's Quirk had healed him without him even knowing it. Then, the monstrous form of Overhaul descended upon them, demanding Eri's return.

Deku stood firm,

Izuku:Eri's Quirk is kind, and it healed me. You don't understand her at all!

Determined to protect her, they realized that by accumulating injuries at a rapid pace, they could merge their powers more effectively.

In a burst of incredible synergy, they fused into a new warrior named Dekiru, the embodiment of their combined strength.

With Eri secured on his back, Dekiru felt an overwhelming surge of power—500% of One For All coursed through him without drawbacks. Overhaul attempted to assert dominance with his monstrous strength, but Dekiru was too fast, too fierce.

As he flew toward Overhaul, he shouted,

Dekiru:How can I call Myself a hero if you can't save one small girl right in front of Me?A Hero who saves EVERYONE!!!!!!!!!!!

He unleashed a flurry of strikes that left the villain reeling, culminating in a powerful smash that sent Overhaul careening back, a testament to their newfound strength.

Dekiru:THAT'S THE KIND OF HERO... I'M GONNA BE!!!!!!!!!!!!!!!!!!!!!

Dekiru roared as the dust settled.

On the surface, Nighteye and Ochako reached the scene, disbelief washing over them as they witnessed the fusion standing victorious.

Nighteye's heart raced with the implications of what he had seen.

Nighteye:Does this mean... the future CAN be changed?

he whispered, a glimmer of hope igniting amidst the chaos.

As the echoes of the battle faded, a new dawn began to rise. Heroes, villains, and the very fabric of fate itself shifted, proving that even in the darkest moments, light could still emerge, fueled by courage, friendship, and the unwavering spirit of those who dared to fight for what was right.

Dekiru successfully defeats Overhaul above ground by slamming his large, unconscious body into the pavement.

Hari Kurono, lying in wait within the compound, notices that Overhaul is taking too long. Wondering if he failed, Hari recalls Kai's intense desire to never lose in order to preserve the Yakuza's dignity. Hari prepares to kill Eraser Head in order to get away with the finished drug.

However, Suneater and the police arrive to arrest him. Tamaki uses his Manifest Quirk to create a swordfish arm and stabs Hari's arm. Due to the conditions of his Quirk, Hari cannot move and use his power at the same time. Froppy arrives to check on Tamaki, who's also carrying Lemillion.

Above ground, Eri's Rewind spirals out of control, putting a powerful strain on Deku. Kai recalls getting in trouble as a child for fighting another child for calling the Yakuza villains. On their way home in the rain, the old boss told Kai not to raise a hand against civilians. Even so, he thanked young Kai for trying to preserve the Yakuza's honor. Impassioned by the memory of his beloved boss, Kai's seemingly unconscious body moves on its own and attacks in desperation.

Eri's power rewinds Overhaul back to normal, negating his monstrous form.

Ochako arrests and restrains Overhaul before updating Ryukyu on the situation. Eri's power is spiraling out of control and she's afraid that she may kill Dekiru. Eraser Head uses his Erasure just in time to shut off Eri's Quirk, saving Izuku and (Y/n) as they defuse.

Ryukyu orders the police to call ambulances for the injured and asks them to search for the League of Villains as well. Himiko and Twice manage to escape while all eleven members of the Shie Hassaikai are arrested. The injured Heroes and Eri are taken to the hospital following the end of the mission.

Sir Nighteye is in especially bad shape.

Despite this, he takes a moment to tell young Izuku that he managed to twist the future. The energy given off by all the young heroes was able to change the future Sir Nighteye foresaw with his Foresight Quirk.

Izuku tells Sir Nighteye to keep fighting as he's carried off to the hospital. Ryukyu also takes a moment to thank Izuku for his incredible bravery. With that, the rescue mission completed at 9:15 AM.

The police convoy transporting villains to the hospital are confronted by the remaining members of the League of Villains. Tomura mentions that the way to achieve victory in Shogi is by taking the opponent's king. Dabi explains that Shogi isn't that simple while Mr. Compress speaks on the phone with Himiko, thanking her and Twice for giving the League the Yakuza's location.

Himiko and Twice decided to inform the others of Overhaul's condition and this intel allowed them to confront the convoy directly. Dabi tells Spinner to stop weaving the van while the lizard-like villain laments over attacking the police in the name of Stain. Tomura tells him it's a necessary evil and Dabi prepares their preemptive strike.

Dabi unleashes a spiraling wave of blue flames at the transportation vehicle. However, the police car intercepts the flames and the Sand Hero Snatch uses his Quirk to defend the convoy. Tomura confronts Snatch directly, distracting him long enough for Compress to uncompress a boulder beneath the car, causing it to flip. Tomura gets into the front of the transport vehicle and causes it to crash as well.

Tomura Shigaraki mocks to a helpless Kai Chisaki as he says that The fruits of his labor are now all his!!

Snatch manages to save the driver but he's confronted by Dabi from behind. The Sand Hero recognizes Dabi as the culprit behind multiple murders where the corpses were severely burned. He attacks Dabi and asks if he's ever considered the feelings of those left behind. Dabi counters with a burst of flames and Mr. Compress manages to get behind Snatch and compresses him. Only able to transform the top half of his body into sand, Snatch is compressed with the flames and dies as a result.

Tomura confronts the restrained and defeated Overhaul. Kai asks if Tomura has come to kill him, but the double-crosser reveals he's going to do something Overhaul would hate even more. Tomura says he hates Kai because he's way too cocky. Compress takes one of Kai's arms and says he hates Overhaul as well, showing off his new prosthetic one.

Tomura reveals he has taken the Quirk-Killer bullets and touches Kai's arm, decaying it.

Tomura cuts it off before his Quirk spreads and then taunts his rival for being Quirkless and helpless. Tomura claims Overhaul's hard work for his own. Spinner tells his allies they need to leave quickly while Kai begins to panic after realizing he won't ever be able to heal the boss now. Kai breaks out into hives and screams out in agony as the League of Villains walk away victorious.

The heroes in the residential area surrounding the Hassaikai's hideout check the damage. Hardly any civilians were injured and the damage was kept to a minimum thanks to Deku's efforts. Nejire Chan tells the heroes and the police that he did an incredible job despite Overhaul's massive size. Meanwhile, those injured in the fight are being treated at the hospital. Deku is checked out without any injuries and he meets up with Eraser to check up on everyone else.

Kirishima,Tamaki and Fat Gum all received moderate injuries but nothing life-threatening.

Rock Lock was also able to avoid any serious injuries.

Eri remains feverish and asleep while being quarantined in the hospital, due to the danger of her Quirk as (Y/n) Stays with her,despite the doctors saying No.

Izuku and Eraser Head meet up with All Might and Nighteye's sidekicks.

Recovery Girl and the Doctor's reveal that Nighteye will likely die before the next day comes.

All Might and his former sidekick finally reunite on his death bed. All Might apologizes and Deku begs him to live. Nighteye reveals he doesn't resent either of them and hopes All Might can continue to be happy. Nighteye reveals that Izuku was able to change the future thanks to everyone's heroic actions. His mind has been changed about Izuku and about how the future can be saved.

Despite his own injuries, Mirio storms into the room in order to speak with Sir Nighteye. Crying, Mirio begs his mentor not to die and says he was only able to because of Nighteye's teachings that he became so strong. Sir originally only recruited Mirio in order for him to gain One For All. Before long, Lemillion became his pride. He uses his Quirk one last time to look into Mirio's future. He sees that Mirio will become a finer hero than anyone else.

He tells everyone to smile because a society without hope and humor cannot have a bright future. Sir Nighteye flatlines and everyone is forced to say goodnight to their beloved Sir.