It was officially the day of the fight between Stars and Stripes and Izuku.

Izuku decided to wear his hero suit for this fight. He was currently waiting in a corridor only to hear someone coming from behind. He looked to see his family was there.

He paid no mind to them but still asked....

Izuku: What is it that you want?

Toshinori: We just wanted to wish you the best of luck in your fight.

Inko: Me and your father worked along side with Cathleen a few times. So she won't be an easy opponent-

Izuku: So was All For One. But yet when I fought him all he was, was a man who thought that he was a god. But yet I proved him wrong.
He said cutting her off.

Izumi: It's still not too late to accept it, OFA. Maybe you could use it to help you in-

Izuku: If you value your life than you will shut up. I do not want it, if I wish for more strength than I will get it myself. Just because you know her doesn't mean I won't go easy on her.

Toshinori: Just please don't kill her son. That's all I ask.
He said before he, Inko, and Izumi left.

Izuku:....Tch.

Announcer: And ladies and Gentlemen, we have the man of the hour.

Izuku began to walk out only to find himself in a stadium with an arena in the center. It honestly reminded him of the Sports Festival stadium. But this one was much larger than that one.

Announcer: We have the Tyrant himself Izuku, Poseidon!!

The crowd had a mix of cheers and boos for him as he saw on the other side Stars and Stripes herself. She looked at him with a look of hurt and determination.

SAS: It's still not too late to back out. I don't wish to hurt you, but if you continue this, I will have to bring you into prison.

For the first time Izuku decided to face his opponent though when her gaze met his, she was hit with a wave of anxiety and hopelessness. It was like she was staring at a large version of Izuku who held his trident ready to kill.

She steeled her nerves and took a stance. While Izuku's gaurd was lowered it was as if he wasn't going to take this fight seriously.

SAS: (So you think you can win this fight that easily? Well I'll just prove you wrong.) New world order: I will have the speed of my opponent.
She muttered to herself as her body glowed a bit. Something that Izuku caught on.

Izuku: (Why was she glowing? I may not know much aboutnher quirk. And that's what makes this fight a bit difficult. But from what I could gather her quirk allows her to either change herself or she can affect her opponents by touching them. So I'll have to keep my distance.)

He thought as he took a stance and thrusted his trident forward only for her to dodge. Something that made him go wide eye a bit. Sure he has seen All For One dodge his attacks but that was based in pure instinct this dodge was like as if she saw it coming.

SAS: You wish to try again?
She asked in a bit of a cocky tone

Izuku getting a bit irritated and thrusted his trident in her only for her to dodge ever attack till she was right in front of him. She sent an uppercut only for him to lean his head back as her fist went into the air sending air pressure.

This moment brought back a memory during his fight in Ragnarok, Sasaki Kojiro. The one who brought forth humanities first victory against the gods. The one who was able to bring down this Tyrant.

Izuku: (I will not lose this fight.)

He thought before he did a backflip and kicked her in the chin sending her sliding across the ring a bit. He managed to easily catch himself as he stared at his opponents direction.

It was now official Stars and Stripes may just be the person who could take on The Tyrant of The Seas.

He looked to see that his kick sent her skidding but she managed to catch herself before she could get any farther. She looked at Izuku with a smile.

SAS: I'll admit you are strong. (But with that single kick he easily managed to bruise my collar bone a bit. I need to end this fight as quick as possible.) Cancel previous World Order. New World Order: I will have my attributes enhanced 100x.

Izuku was confused at first until he saw her dissappear and then he felt a blow to his gut and went skidding until he stopped and rubbed his gut.

Izuku: (I see, so her quirk allows her to make only physical changes to her body and to anyone she touches. But she needs her voice in order for it to work.)

He thought as he looked at his opponent to see a look of surprise on her face.

SAS: (There's no way that's possible, even All Might in his prime couldn't handle a punch like that.)

Izuku: I know what your thinking right now, "An attack like that is something All Might himself shouldn't be able to handle", right?

SAS:....

Izuku: I'll take your silence as a yes. But let me tell you something thst you should've known long before this fight. You are fighting someone.....who isn't All Might.
He said before he disappeared with his speed.

She looked around until she looked up to him hovering above her, his trident cocked ready to strike....

SAS: Cancel previous World Order! New world Order: I will be able to predict my opponents movements!

She yelled as Izuku used his technique "Chione Tyron Demeter". But he noticed that she was barley dodging each strike which reminded him of when he used this technique against Sasaki during his match in Ragnarok.

He stopped as he was back in his spot but he thrusted his trident only to use his Ultimate Move "(Range version) Persephone Roa Amphitrite".

But he wasn't aiming at her he went straight to the Yagi family who were watching from the front stands. Stars and Stripes immediately got infront and tanked the hits to protect them.

But at a cost. Her left forearm was penatrated though it didn't go through, she was missing a chunk of her right shoulder. And her side was bleeding. She was covered in numerous lacerations as she leaked blood all over her body.

SAS: (Damn! What was that attack!? It was like I was getting hit with a large screw going at mach 3! This guy is no joke, I can't beat him as easily as I want to....guess I have no choice....)

She walked with a slight limp in her step back into the arena.

SAS: (Why did he go after the Yagi family when he is a part of their family? Did he do it knowing I would jump in and block the attack?)

She thought as she walked back into the arena with a serious look on her face....

SAS: No more games....Cancel all previous World Orders. New World Order: My wounds will instantly heal along with me regaining my stamina.

She said as all of her wounds healed and her fatigue went away as her stamina was at peak.

SAS: New World Order: All of my physical attributes will be enhanced by 1000x!

Izuku watched as her muscles grew larger, veins showing. He could tell she was stronger than at the start of the fight.

SAS: This is your last and only chance. If you stand down and let me take you away peacefully. I'll see if I can let you off with a warning.

Izuku:....

She sighed, somewhat knowing this was going to be his response, but at the same time she was disappointed.

He watched as she disappeared and felt a punch to his left cheek that sent him skidding along the ground as he caught himself. He caught himself as he felt a slight bruise on his cheek.

This made his eyes widen a bit in pure shock that this was the first time that anyone had ever harmed him like this.

Isuku looked over at Stars and Stripes...

Izuku: I must say I'm very surprised by this. No one has ever harmed me like this. You should be grateful that I let this show go on long enough. But....

He brought the blade of his trident to his chest confusing her and everyone watching, until he cut his chest open shocking everyone.

Izuku: It's high time I take this very seriously...

He said as he began to whistle his tune of death. Those who heard it were already worried about Stars and Stripes knowing that those who have fought him and he whistles , it's a sign saying someone will die.

Izuku covered his hand in blood as he slapped it onto his forehead as he continued to whistle and brought it up. Only for his eyes to open staring straight at her while he had a sadistic smirk on his face.

Izuku: I honestly hope your ready cause from now on...This fight is to the death....
He said as what he said sent a shiver down her and everyone else's spine.

He held his trident cocked and ready to strike but his muscles in his arms and legs bulked horrifically. He then thrused his trident in only for him to graze her shoulder causing a geyser of blood to shoot out of the wound.

She screamed a bit as she held her wound kneeling to the ground. She was about to stand up only to be met with a fist to the face slamming her head on the ground.

Izuku then got on top of her as he rapidly punch her face causing her head to cave into the ground.

He sent a grueling punch down towards her as he got up. And looked at his.

Her face was completely bruised, bloody, her skull caved in a bit. She layed there completely motionless but yet still breathing. Izuku turned around grabbed his trident and started to walk away while not seeing someone stand up behind him.

SAS: C-cancel a-a-all p-p-previous World....Orders....N-new World....Order: My punch will kill....the first person it hits no matter their strength...or quirk.

She then used the last of her strength and charged at the back of Izuku.

SAS: RRRRAAAAAAAGGGHHHHHH!!!!!

Izuku slowly turned and lifted the head of his trident.

As he did so, everyone watching saw the most horrific sight......Stars and Stripes herself has been pierced through her stomach as she threw her punch only for him to tilt his head away from it to dodge.

The first time in their fight their eyes had met. But at that moment....
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Adamas = Stars and Stripes

Izuku had taken the life of Cathleen Bates.

Izuku: You should have taken the loss, but no, your pride and arrogance got the better of you. (Even I fell prey to this once. But unlike last time, I learned my mistakes, and will not be making the same one anytime soon.)

He thought as he swung his trident to the side throwing off her corpse, crashing it into the wall causing it to splatter blood all over and fall limp as her body laid their lifeless.

Izuku began to walk away as the entire arena fell silent. The heros of America were upset and angry over the loss of their number 1 hero.

The Yagi family watched with horror as they thought one thing.....

Yagi: (Where did we go wrong....)

Somewhere else we see Redestro who lost his feet now bowing before Shigaraki himself as if he was a God.

Redestro: The Meta-Liberation Army is at your command, lord Shigaraki.

Shigaraki: (Just you wait Tyrant of The Seas, because I'm coming for you and I'm much stronger than you ever could imagine.)

He thought with a wicked smirk on his face right now, his eyes glowing red fueled by anger and vengeance. Against the one who had prevented everything from going right. Now with the current strength he's at along with his newfound power. He'll bring this world to its knees and no one will stop him.

A/n: The next chapter or two will be about what the league has been up to during all of this time. Seeing as some of y'all are a bit curious about what they have been up to during everything else.