Unexpected Savior! A Final Battle Arises! (Part 4 of 5)

Tokoyami slowly looked up at Doe, "How... How dare you..."

Dark Shadow came flying out much larger than normal and smacked Setsuko into the ground. Doe held back Dark Shadow's arms as they both struggled for control.

"WE'RE PUTTING AN END TO THIS! GOT THAT?!" Dark Shadow fumed.

"Go right ahead! Try it!" Setsuko laughed.

Dark Shadow grabbed Setsuko's wrists and headbutt her repeatedly! Doe blasted Dark Shadow off of her, only to see that it grew in size! The ball of dark energy didn't hurt Dark Shadow, it strengthened Dark Shadow, allowing Dark Shadow to rebound.

"Dark Shadow. Ragnarök." Tokoyami muttered.

Dark Shadow fed off of the energy given to him by Doe and became gigantic! He crashed into Setsuko, clawing and slashing at her entire being. Dark Shadow shrieked out of rage as it delivered hard hitting blows to Setsuko. Doe rebounded by using an Air Cannon to send the beast away from her. She stood back up and brushed herself off. She tried to move her right arm, but realized that it was stuck, she looked to her right to see what was going on.

"W-What... What in the fuck are these?" She wondered.

"That's my Quirk, Pop Off." Mineta told her.

She looked behind her and saw Mineta standing there. Her face turned from worry to a smile. Doe began to cackle at what she was seeing.

"You're serious? With a Quirk as pathetic as that, you challenge me, really?" Setsuko laughed mockingly.

"I've always been told that my Quirk is useless, told that I didn't belong in the hero course at U.A., but I ignored it. It's all because I want to become a cool hero like Midoriya and Bakugo, but it's also because I wanna prove people like you wrong! Yeah, I might be weak and a pervert, but that's exactly what people expect of me! So, when I pull out a trick like what I've done now, they don't know what to think!" Mineta retorted.

He pointed downwards and smirked at her. She looked down and noticed that it was just a distraction as Laura was right underneath her legs.

"Peek-a-boo!" She winked.

Laura launched a fiery phoenix straight into Setsuko, sending her back into Dark Shadow's range! Laura gave Mineta a thumbs up before returning to her gaze to Setsuko. Dark Shadow grabbed Doe and slammed her into an ice wall that was set up by Shoto. Right behind the wall, Shoto was waiting, he assaulted her with a hellish blaze of fire! As the fighting continued, Yaoyorozu continued to treat Leonidus' wounds as best as she could.

"Goodness, they're really taking it to her." Momo noted.

Alyx grabbed his sword and looked down at it, "How quick do you think you can learn Total Concentration Breathing?"

"I doubt I could learn it in a shorter timespan that what you did, darling. If you're asking me to try and kill her myself, I don't think I'll be able to." She responded.

"Okay, that's fine. I just don't know if I can even move at all at this point." Alyx nodded.

On the battlefield, A huge bolt of lightning struck down and lit up the surrounding area!

"Heh heh! How'd you like that?" Kaminari grinned.

Setsuko slightly trembled from the bolt of lightning Kaminari sent straight into her! Doe sent a barrage of Rivet Stab tendrils in all sorts of directions!

"I'm getting fucking tired of all of this fighting. Hand over Leonidus and that green haired wannabe!" Doe shouted.

"Not a fucking chance, Shit stain!" Bakugo growled.

"Fine then, I'll just take them by force!" She roared.

The tendrils shattered and flew off towards the heroes! Annie and Kariya shielded everyone that they could as some guarded against the flying shards. Setsuko took the opportunity to move to find Alyx.

(I.R.P.: Listen to "Bombing King!!" from My Hero Academia)

"NOT A FUCKIN' CHANCE!" Bakugo shouted.

He grabbed Setuko's hair, using his Quirk out of his right hand he used the momentum to spin around and slam her into the ground. It shattered the earth beneath him and he used his AP Shot: Auto Cannon move which rattled against Setsuko's body! Dark Shadow crashed into her, Bakugo gave chase to the two and so did Kaminari. Bakugo zoomed past Dark Shadow, who retracted back towards Tokoyami. Denki put his hands on the ground and electrified the area that Setsuko landed. She hit the ground and started to convulse due to the electricity, Kaminari sent her flying upwards by letting off a huge spark of his Quirk, Bakugo capitalized on this and grabbed Setsuko midair.

"Just fucking die already, will ya?! I'm starting to get even more annoyed!" Bakugo raged.

He spun her around and around, generating more speed with his Quirk, he couldn't help but smirk as they got closer to the ground.

"HOWITZER IMPACT! DIE YOU GODDAMN BITCH!!" He yelled.

Using a smaller explosion, Katsuki sent her to the ground, he outstretched his hand and let off a ginormous explosion at point blank range! He landed on the ground, as the smoke rose, he saw a rather pissed Doe Setsuko. He smirked at her and spit at her face.

"You damn bitch, you aren't getting your way, not when I'm around. So, you can forget about that dumbass little plan you and All For One have, it ain't coming true! Your ass can bet that on everything!" Bakugo laughed.

He pulled out another grenade and rolled it over to her feet. He walked away from her as it exploded behind him. He stood still as he heard movement from behind him.

"YOU BASTARD!! YOU'LL PAY FOR THAT!" Setsuko screamed.

He ducked a swipe from her without bothering to look, he turned around and smirked at her, the palms of his hands started to spark.

"Die." He grinned.

An explosion ripped throughout the land! Bakugo shook his hands off as the smoke rose into the air. Suddenly, he was pushed out of the crater he created by an intense gust of wind. Setsuko started breathing heavily as her body intensely trembled out of anger.

"I won't... Let any of you... Stand in my way any longer!!" She thundered.

She harnessed most of the Quirks All For One had at his disposal all at once. Setsuko floated into the air and surveyed the area, her eyes locked onto Alyx's position, she charged forward towards him.

"Shit... She's heading towards Leonidus and Creati! Come on! We need to stop her!" Mirko shouted.

The heroes all followed Setsuko as she made her way towards Alyx. Suddenly, from seemingly nowhere, Iida circled around her and smacked her in the face with a kick! Uraraka held her fingertips together and grinned as she saw Iida send Setsuko back down to Earth!

"Nice one, Iida!" She beamed.

He floated back down to the ground, the kick dislocated Setsuko's jaw once again.

"I'm not letting you bring harm to Leonidus! It'll be a cold afternoon in Hell before I let that happen!" Iida stood firmly.

Setsuko snarled at Iida before charging at him. Iida darted towards her as well, but instead, he slid underneath her. He took her legs out from under her and landed right onto a trap placed by Mineta and Sero! Her arms were firmly stuck to the ground, try as she might, she couldn't get them freed! Endeavor dove into the air above Setsuko and placed his hands beneath him.

"PROMINENCE BURN!!" He shouted.

A massive beam of fire flourished from Endeavor! It set the area ablaze alongside Doe Setsuko. Her skin was now a charred, black mess, alongside with some bones being visible. It slowly began to regenerate, it seemed as if her regeneration was slowing down! The wisteria oil that was on Leonidus' hands was finally starting to set in! She hacked up smoke and struggled to stand up to her feet.

"I-I... Can't let them... Disrupt our goal... Father..." She mumbled.

"Show them your true power, Setsuko, let it out!" All For One told her.

Her eyes became nothing but black, a shrill scream destroyed the area around her, sending some heroes flying back! She charged towards Endeavor, Setsuko grabbed his head and slammed it into the ground. Her attention turned to another Pro Hero that she tore through with ease! An extra appendage launched out of her back and shot off hundreds of bone spikes in random directions. It caught some of the surrounding heroes and gashed parts of their bodies. Setsuko made a mad sprint towards Leonidus and Yaoyorozu. She tore through the still untouched forest, knocking down trees as she barged through or past them.

"Do you hear that?" Kirishima asked.

The distant sound of trees falling one by one was heard in the distance. Kirishima stood up and looked in the direction of the sound. His eyes widened as the look of fear came across his face. Alyx looked up and his eyes widened as well.

"Motherfucker..." He mumbled.

Setsuko emerged from the forest with a sinister grin on her face.

"There you are... Leonidus... We were looking for you. It seems as if your friends were here as well... Good, now we can get rid of you three much easier!" Setsuko cackled.

Alyx grit his teeth as he tried to move, "D-Doe Setsuko... Damn you..."

Setsuko held her hand out, sparks of purple electricity came from the palm of her hand, three orbs appeared in front of her hand. She laughed some more before looking down at Leonidus.

"Goodbye, Leonidus. I hope the afterlife treats you well!" Setsuko laughed.

Doe fired off the blasts at the three! Momo held Alyx close to her and Kirishima guarded himself. Right before it impacted, Alyx closed his eyes as well. There was a whizzing sound that got faint by the second. The three opened their eyes and found that they somehow moved?

"What?! How?!" Setsuko exclaimed.

"W-We... We moved? But how? Did she miss?" Momo wondered.

They looked to the side and their eyes widened.

(I.R.P.: Listen to "Separation and Departure" from Jojo's Bizarre Adventure)

"Y-You're..." Setsuko muttered.

"I-It's...!" Kirishima smiled.

"No way..." Alyx grinned.

"M-Mikaboshi!" The trio shouted.

"Huh, you three seemed to be in need of some help. I've always wanted to assist in any way that I could, never in my lifetime have I thought of myself as a good person." Mikaboshi announced.

Momo looked on in confusion, "B-But... I thought you sacrificed yourself? You disappeared right in front of us!"

"Well, you can't kill someone like me, simply because I have yet to fulfill my promise. That being to keep the Leonidus Family safe from any harm. I was ordered to possess Alyx in order to cause him harm, although I was blind at the time, now I realize how much of an extraordinary person he is. He offered a kindness that I've never seen in all of my years of living. So, I made a promise to myself, to help him keep those he loves safe. That's why I refuse to die, it's because of you, Alyx Leonidus. You've shown me the true nature of a mortal being, for that... I thank you, my friend." Mikaboshi explained.

Alyx looked down and his lip began to quiver.

"Mikaboshi... D-Don't you ever do something that goddamn idiotic again, got it?!" He sniffled.

"Why? And let you have all of the dramatic exits and entrances? That'd be no fun at all." He chuckled.

Alyx shook his head as tears flowed down his face. He looked up and smiled just like Ms. America and All Might.

"You dumb motherfucker! You had me worried sick about you!" Leonidus wept.

"I-Impossible... How... Nothing should've survived that attack!" Setsuko shouted.

"Oh, silence devil, I'll serenade you with death in a moment. Now, I understand that you're similar to Alyx. Both of you are demons, no wonder you've been able to handle yourself against your opponents. But for now..." Mikaboshi retorted.

He held his hand out and the black smoke phased out of Setsuko. It became an orb in his hand, he disintegrated it and looked back up at Doe.

"All For One is no more. Sorry, Doe Setsuko, but it seems as if this 'Father' of yours has left you as well." He continued.

The Pro Heroes circled and surrounded her. Alyx stumbled up to his feet as his classmates joined his side. Setsuko looked around at the various heroes surrounding her and the ones in front of her. Suddenly, in a flash, her arm was slashed off! The socket was covered in wisteria oil, preventing her from regenerating it. Luna held Doe's arm and threw it to the ground. She looked behind her and smiled at Alyx.

"Did I do one of those cool entrances right?" She beamed.

"Y-Yeah... You did." Alyx replied.

"Yeeesss!" Luna whispered.

Alyx uncovered his left eye to reveal his Demon Slayer Mark! He pulled out his sword and readied himself. He struggled to stand up straight, which made Doe laugh at him.

"You're key to victory can't even muster the strength to stand! What makes you think that you'll defeat me?" She called out.

"Because he has us, Setsuko." Tanjiro announced.

She looked past Alyx's shoulders and saw a number of people emerged out of the forest. The Pro Heroes standing there separated, allowing them to pass by. Tanjiro, Zenitsu, Inosuke, Nezuko and the Hashira stood right next to Alyx.

"G-Great Grandpa... Everyone... You came!" Alyx grinned.

"Well, this seems to be the last demon we'll have to deal with, so we figured we should help out. Also, I've been aching to get my blades bloody!" Inosuke responded.

Mikaboshi phased back into Leonidus. Alyx finally stood up straight and he held his blade firmly.

"Shit... I'm surrounded, without Father's guidance, I'm lost! Unless, I can figure something out on my own. But there's too many of them, my body's getting weaker by the second, what's going on? This should've been the ultimate Quirk! Why...? Why isn't anything going my goddamn way?!" Setsuko fretted in her mind.

Her eyes darted around, looking for some sort of opening, or some sort of escape. But she looked up and saw that the area around her was surrounded by a force field. Kariya made eye contact with her from outside of the force shield and stuck up his middle finger at her.

"Fuck you, dumbass bitch." He mouthed.

Her eyebrows furrowed as she returned her gaze to Leonidus and the others. Her fists clenched and she roared out of frustration.

"Fine! You want to fucking die, I'll send all of you to hell!" She yelled.

She fired off dozens of Rivet Stab tendrils at Leonidus, Giyu stepped out in front of him.

"Eleventh Form, Dead Calm." He muttered.

The area turned into nothing but silence, Giyu stood on a bed of water by himself, the tendrils were cut in half with speed greater than what anyone could see! It looked as if he didn't move from his position at all. Setsuko's eyes widened as she wondered what just happened.

"What in the hell!? There's no way a simple sword could break through that attack!" Setsuko remarked.

"These aren't just simple swords, Doe, they're made from the toughest material on Earth. These blades were designed for the soul purpose of killing abominations like you." Shinobu explained.

The Demon Slayers walked forward and turned to face Class 3-A and 3-B. Rengoku gave them a warming smile.

"Leave this to us! You all have done quite well, but we can handle this!" He grinned.

They all firmly grasped their weapons, Alyx stepped forward and unsheathed his rose colored Nichirin Blade. He smiled at Setsuko as his Demon Slayer Mark slightly began to glow.

"We're ending this, right here, right now! I'm not letting you destroy my world!" Alyx shouted.

His blade shined fiercely as sunlight began to show through the dense clouds. The Demon Slayers and Alyx stood at the ready as Doe Setsuko twitched with anger. Could these warriors save the world, or will evil run rampant once more, led by Doe Setsuko herself! With Leonidus leading the charge, the Demon Slayers made their way towards Doe Setsuko, with her responding in kind.