Years ago, when The Son of Patriot's true intentions has trying to takes over the world taken control by Liquid Snakes in attempting to killed his twin brother Snake to worthy as true son of Big Boss. But he's fail to kill him.

Snake manage to defeat him and destroyed the Son of Patriot has been fallen, and deciding to have a retired life with his best friend Otacon and his adoptive daughter Sunny and continue to train his protege means.... (Y/N) (L/N).

6 years later

In the middle of the night, there is traffic in the night, but there is young man has (H/C), (H/L) and (E/C) wearing the coats around looking at the building. His name is (Y/N) (L/N) and codename Strike.

He's on the mission to kill the man name.... Shiro.

He heard the sound of codec calling, he accepts the call revealing Otacon real name Hal Emmerich.

Otacon: Strike. Do you know what your mission is?

(Y/N): Yeah, find the guy name Shiro and take him out to find out what he doing. Got information about him?

Otacon: Yes, a little. It's say about him a mysterious scientist have a mysterious history of his past and has been taking experiments on young man.

(Y/N): Hmm, he kinda... strange.

Otacon: Yes. of course.

(Y/N): Thanks Otacon, Strike out.

He cancel the communication.

He release a big sigh.

(Y/N): Man, I never gets a break.

He revealing a coat around revealing he been wearing the high tech suit stealth under his coat and the pant.

(Pretends he not wearing any helmet, he'll wear it later)

(Y/N): And last one.

He putting the high tech eye patch on his left eye.

Solid Eye Mk II has upgraded with the Heat Signature, Hologram, Scanning the Evidence, Scan the target kill or knock out, Detecting their enemies and hostages, night vision and lie detective.

(Y/N): That should do it. And here we go.

He look at the building before he smiles and put on his mask on to hide his identify.

He using the ninja skill and the magnet glove to help him climbing on the glass window like Sp*der-M!n.

He stopped at the 9th building, he slowly slash the window gasp in silence, to get through the building, he sneakily on the ground. And using the Solid Eye to detecting in heat signature, there are five guard and one guard coming to (Y/N)'s side in the wall corner and (Y/N) behind the wall.

Inner (Y/N): There are five guards and one is coming to my way. I need to hide.

Guard: Whistles Huh?

While he was whistling before he turns to the.... box. A box out of nowhere.

The guard tabs the box with his rifle, it didn't move. He shrugged his shoulder and continue whistles and walk again.

But he didn't notices when (Y/N) got out of the box and begin strangle him in behind with his arms. The guard tried to break free and soon pass out.

(Y/N) lets go of his arms and begin to starting before release a big breath in silence.

(Y/N): Woo! Man that was pretty tiring and thanks to the box.

He resumes his mission, hiding behind the corner seeing the guard passing through on his side, he takes out the non-lethal gun.

Tranquilizer Gun.

He slightly aiming at the guard, he pull the trigger takes the shot at the direction of his neck.

Guard 2#: What the...

And pass out.

He begins to sneak again seeing the guard are walking and he behind (Y/N). So (Y/N) sneakily goes to his back and.... snap the neck and dead.

He finally at the elevator but he seeing two guards guarding the elevator and (Y/N) begins to hide the wall corner again.

Guard 4#: Hey, got free time for you?

Guard 5#: Yeah, play fortnite.

Guard 4#: Dude! You're play that dumb game again?!

Guard 5#: Okay! How come Fortnite is the dumb game?! It's awesome and fun!

Guard 4#: Yeah! But it's sti...

Guard got knocked by the tranquilizer dart on the neck making the Guard to be shocked.

Guard 5#: W-What the...

And knock too.

And (Y/N) came out of the hiding going to the elevator.

(Y/N): Wow, what an idiots...

He entered to the elevator pressing the button of 15 floors where the boss is.

(Y/N): Okay, Shiro. Now your day is ov....

He was cut when he was 13th floors unexpected to see one of the guard.

https://youtu.be/2P5qbcRAXVk

(Y/N): Ahhhh, hi?

Soon the guard tackled (Y/N) and he fights back pushing back and they pressed the button of the emergency button where the elevator has been stopped and brake.

Guard threw the first hook but (Y/N) able to blocked with his forearm and block another hook, round kick on the chest. Guard takes out of the electricity baton attempting to hit him but he blocked with his forearm.

(Y/N): Sparky huh? I saw you more sparking!

On the other hand his gauntlet filled with electricity, his arm swipe out the baton of hand. And placing his palm on Guard's face. Making him scream in pain.

Guard: Gaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah!!!

There two shadow figures of (Y/N) and guard and blood came out and come from the head brutal killed him.

(Y/N): Oh! My bad. Breathing in and out

He press the button of emergency button to turn off and resuming going to the 15th elevator.

Ding!

(Y/N): And we're here finally.

He stepped out of the elevator, kicking the door of the office, where the chair looking at the view of the city outside the window.

???: So, you must be the one sneaking to my building?

(Y/N): And you must be Shiro?

Shiro: A ha ha ha ha... I never expected likes the kid from you?

He gets up from his feet facing to (Y/N).

(Y/N): Damn! Dude you kinda remind me of Meta Knight.

Shiro: I don't know what is that. But why are you here.

(Y/N): Oh, it isn't obvious? I'm here to kill you.

He takes his high tech katana HF sword. Pointing his blade at him.

Shiro: Ohh! So you want my life?

(Y/N): Yes, but... it might be your end.

With a remained silence before (Y/N) could takes another steps but with a sudden expected for that, Shiro burst out of laughing making (Y/N) to be confused.

(Y/N): What the hell you laughing?!

Shiro: Oh no... this might be your last.

(Y/N): Wha...?

Suddenly when (Y/N) felt getting by the punch forcing him to flying on the ground, he quickly get up and stances in defensive  looking at the person is running in fast and couldn't the person before taking out his pistol.

Shooting at the unknown speed power but no luck when the bullets couldn't tried to hit him and ran out of the bullets.

He gets elbowed by the unknown person sending him flying to the wall creating the crater he slowly gets up on his feet.

Inner (Y/N): Damn! This guy is fast and I couldn't see him, he managed dodged my gun couldn't  reach for him! I'll take recording mode to let Otacon and analyze the new powers and I had to take him out!

(Y/N) shut his own eyes before turning on Solid Eye in Recording mind to waiting the pressure of the person to get closed him and feeling the pressure of the hand getting close to him.

His eyes open widened in snaps.

(Y/N): You're mine!

He spins his foot swinging his blade activate in heat managed to cut the... tentacle? 

(Y/N): What?!

He seeing the man leapt back landed back next to his master revealing he has the tentacle on the neck.

(Y/N): Wha... What the hell is that?!

Shiro: Oh, this is my greatest creation and it's unstoppable you won't able to stop it. 

Seeing the tentacle regenerated back.

(Y/N): You bastard!

(Y/N) attempting to kill him but the man cut through the blade broken in half before he looked at it in shocked.

(Y/N): No!

And he gets kick by the tentacle man landed next to the nearby window he cough out of blood from his mouth under his helmet, he struggle to slow up and gets the call by codec.

Otacon: (Y/N)! Get out of here! You're can't defeated him!

(Y/N): But I can take hi...

Otatcon: Now soldier!

(Y/N): Tch!

He ended the codec, slowly get up to glaring at Shiro.

(Y/N): This isn't over yet.

Before the tentacle attempting to kill on (Y/N) but he smoke bomb making him cover his eyes to shield. (Y/N) rushes to the nearby window and crashed it.

He falling down and he sudden uses the wingsuit on his advanced suit to gliding and floating in the sky.

Tentacle man attempting to follow him but Shiro blocks his arm to stop him from moving.

Shiro: No, let him go. We have another plan to do.

He nodded his head and left.

In the Japan Ministry Defense Force

There are two people looking at the video of (Y/N) in mission and assassination in the command room. They filled with interesting. They looking at the private information of (Y/N).

???: Interesting who is that guy?

Computer Programmer: His name is (Y/N) (L/N) and his codename is Strike.

???: "Strike" huh?

Computer Programmer 2: Yes! (Y/N) (L/N) is age of 15 years old his parents deceased and was raised and train by.... Solid Snake.

Making them shocked of hearing of the name.

Member: Solid Snake?!

Member 2#: Solid Snake the "Legendary Hero, Legendary Mercenary and the Man who makes everything the Impossible Possible"?!

Member 3#: How can he train by Solid Snake?

???: Doesn't matter. We might have his skilled to help us and save the world from this threat.

Member: But sir, you think he might help us?

The higher rank narrows his eyes.

???: Only one way to find out.

(Y/N) while gliding in the air was about to be fall but luckily he heard the loud engine coming up from the sky.

Revealing Nomad, the transport aircraft serve the HQ for Snake, Otacon, Sunny and (Y/N) to live here.

He using the grappling hook under his gauntlet to catch on the jet before the trunk could open, he boost up to catch up on the jet.

He enter the Nomad, Otacon looking at (Y/N) he was about to fall.

Otacon: (Y/N)!

He gets up his chair luckily to catch in his arms.

Otacon: You alright?

(Y/N): Yeah, I' m fine.

(Y/N) gets up to off Otacon's arm he taking out of his helmet making it's automatically open the size to releasing some air removing it before tosses on the floor, and pressing to type in on his gauntlet. Making his suit goes automatically open the size to release the air.

He removes them revealing he shirtless before he laying down in the coach.

The aircraft flow taking them back home in America. 

In the base of Military Aircraft

(Y/N) is icing himself where his injury rip is and Otacon is typing on his computer to analyzing the new power of the tentacles and the speed. And the suit on display.

(Y/N): So anything?

Otacon: Well, yes. Thanks to the recording sending the data to my computer I know analyzing and know what it is.

(Y/N): That's great. But can you tell me about the speed.

Otacon: Well unfortunately, you're about don't like it.

(Y/N): Okay....

Otacon: According to my dataa, it saying that superpower has super speed and acceleration of Mach 20.

Making (Y/N) spit out of his drink.

(Y/N): Mach 20?! Mach 20?! How come he's able to run any faster!

Otacon: I don't know but that tentacles can be able to regenerated from any time and he also gain of super strength, super agility. There's no way to defeat him (Y/N) and there's no weakness on them.

(Y/N) staring in disbelief before release a big sigh and rested on the coach looking at the moon in the sky with it's currently had been destroyed into crescent moon.

(Y/N): It's been two months when the moon has been destroyed when it turns into crescent moon.

Otacon: Yeah.

Otacon is typing on the computer.

(Y/N): Hey, Otacon?

Otacon: Hmm?

(Y/N): Do you think, I'm worthy of my mentor's name?

Otacon: Sigh I don't know. But you're feel like you're not ready to be next Snake.

(Y/N): Yeah, you're right. Wanna grab eat som...

Knock!

Knock!

Knock!

(Y/N) gets up and Otacon secretly hide the suit from the citizen or from the Government and (Y/N) opens the door.

(Y/N): Yeah?

Karasuma: Excuse me, are you (Y/N) (L/N)?

(Y/N): Umm, yeah?

Karasuma: Good, you may not know me. My name is Tadaomi Karasuma. I come from Japan Ministry of Defense.

Made them pale in shocked seeing a government Japan agent already knows where they are.

(Y/N): Excuse us for the minute.

He silent close the door and they whisper in shocked.

Otacon: Why the Japan Ministry of Defense is here?!

(Y/N): I don't know!

???: Hey! What going on?

They look up seeing another scientist and computer programmer his name is Benny Newt, best friend of (Y/N). Codename Techno

Benny told his life when he used to live a family but soon force to leave his home after his father die and been taking interested of scientist and computer taken the job in young job but life was worse. He found the terrorist targeting him and force him to work them but (Y/N) managed to save his life, and Benny decided to join (Y/N) alongside with Snake and Otacon taken the codename as Techno and Otacon as the mentor.

Otacon: You won't what believe. There Japan Ministry Defense comes nhere!

Benny: What?! How they here?!

(Y/N): I don't know!

Otacon: Okay! We're should properly leave this pla...

Karasuma: You know I can hear you.

Heard from outside making them shock in comically.

Everyone: Crap he noticed us!

(Y/N) going to the door letting Karasuma in to having the sit on the coach offering some water or coffee. Karasuma will have a coffee for him and (Y/N) goes make a coffee for them.

Otacon: So, Mr Karasuma?

Karasuma: Yes. You must be Otacon and your real name is Hal Emmerich.

Making them surprised and (Y/N) bringing the coffee to them placing on the table.

Otacon: Y-You know about me?

Karasuma: Of course, you one of the scientist and creator of Metal Gear Rex and close friend and computer programmer of Solid Snake. You help him alongside with his allies to stop the Patriot and save the world from Liquid Snake.

Otacon: OH! I guess I kinda famous then.

He laughing nervously and rub his head behind.

(Y/N): So why you here?

Karasuma: I have favour to ask you.

(Y/N): So, what you need?

Karasuma: I need you to come and  kill someone in Tokyo.

They saw at other each other, filling the air into awkward silence.

(Y/N): I sorry, you want me kill someone? In Tokyo?

Karasuma: Yes, he the one who took the moon.

They staring in remained silence for a minute before they burst out of shocked.

Everyone: WHAT?!

Karasuma: That's right, I show you, your target.

Karasuma showing the picture of his target.

(Y/N): W-What the fuck is that?!

He pointing at the creatures.

Benny: Oh gross! It's kinda remind me of tentacles from h*nt#i!

Otacon goes somewhere to find to puke a vomit.

Karasuma: This creature is unidentified unknown, it may looks like octopus and annoying but he's dangerous.  This creature is trickery hard to kill him, he has Mach 20 to run in faster around the global and hard to shoot at him and won't stay dead, and he can able to survive in outside of space and he has the ability to regenerate himself.

Otacon: I see, it must been the same ability of him.

Karasuma: What?

He raised his eyebrow in bit shocked about it.

Otacon explaining about (Y/N)'s missions were failed talking about some superhuman ability with the tentacle on their neck and same speed as the creatures and Karasuma were curious about it.

Karasuma: I see, I might be....

He turns to (Y/N) seeing he smoking placing the cigarette before littering up in smoke.

(Y/N): Oh! Ahh! You want some...?

Benny: Dude! Seriously! Come on, we've been talk through this about being smoking!

(Y/N): Come on man! Just one smoke!

Benny: No! Sunny will kill you if she found you been smoking!

(Y/N): Urgh! Fine!

He put the smoke making Karasuma sweatdropped at two teenagers are childish arguing and puff their cheeks and crossed their arms and not looking each other.

Karasuma: Um, can we continue?

(Y/N): Oh yeah, of course! What were you saying?

Karasuma: Clear his throat Very well, after he destroyed the moon and now his target is going to destroyed the Earth at March.

Making them to be shocked at it.

(Y/N): That's bullshit! Can't the UN do anything?!

Karasuma: We tried to but we can't kill this damn Octopus bastard he's too fast and quick.

Otacon: So, what he want?

Karasuma: What he want.... to be teacher.

Everyone: Eh?

Making them dumbfounded of hearing the creature wanted to be teacher.

Otacon: Wait! A teacher?!

Benny: Why does he want to be teacher?!

Karamusa: Good question. The Octopus favour to ask us he wanted the role of  Kunugigaoka Junior High School's Class 3-E, so the world's leaders agreed for the deal.

(Y/N): So, why me?

Karamusa: I believe, you might help us and assassinate him. You skill and intelligent might help us for this, you've trained by the firearm gun, expects in stealth, sneak attack, hacking and swordsman technique by Solid Snake and Raiden.

(Y/N): And what happened if I killed him?

Karamusa: Then, you'll be rewarded by 100 million dollars.

Everyone: 100 billion dollars?!

They shouted in shocked.

Karamusa: That's right, you'll be transfer in your new classroom. And...

(Y/N): Okay, I'm in.

They were bit surprised of (Y/N).

Karamusa: Good. We'll start in next we...

(Y/N): I'm not doing for the money.

Karamusa: Wha...

(Y/N): I doing for the sake of the worlds and creating their futures and dreams. And I might help you for saving the worlds not for money. For the worlds' future.

Karasuma was staring in shocked of (Y/N) before he smiles a little.

Karasuma: You're know, you're pretty good kid.

(Y/N): Wha?

He stood up.

Karasuma: Next week, you'll be arriving in Japan and gets your school uniform and you'll meets your class.

(Y/N): Yep, and also is there any weapon that's effects to killed him?

Karasuma: Of course why you asked?

(Y/N): Can you give it to me, because I feels like there other users like him when I failed my missions.

He narrows his eyes remember of what happened he failed to his mission to killed Shiro.

Karasuma: I see, here.

He gave the bottle of pink balls inside.

(Y/N): What is this?

Karasuma: This is Anti Sensei, we're been developing it's might be effects and killed him but it might be reach for him and he might regenerated in fast.

(Y/N): I see.

He turns to his best friend.

(Y/N): Hey, Benny can you upgrade my HF sword?

Benny: I can, why?

(Y/N): Well... you see...

He showing the broken blades. Making Benny to be comically shocked and angry.

(Y/N): I kinda.... broke it.

Making Benny choking on (Y/N) and began to shaking him.

Benny: You asshole! Why do you always break it?!

(Y/N): It's not my goddamn fault! Beside I fought his tentacle and it broke!

Benny: Why you didn't saw it to me?!

(Y/N): Because, I knew you were going to be piss!

Benny: Goddamn it!

(Y/N): Can you fix and upgrade the sword?

Benny: Yes!

He snatch the broken blade away from (Y/N)'s hand going to his lab and slammed the door!

They sweatdropped for a bit.

(Y/N): And Otacon can you upgrade my suit.

Otacon: Of course.

He nodded his head before he left to his work.

He turns to Karasuma in serious expression.

(Y/N): See you, in next weeks.

Karasuma: Yeah.

And Karasuma left.

(Y/N) looked at the moon in the sky.

(Y/N): Saving the world... again.

Meanwhile at Shiro's base.

Shiro: Soon, we'll takes over the world after the Patriot and Desperado has been fallen!

Shiro looking at the soldiers cheering for his approval the terrorist called White Shadow.

???: Raven is ready to take off with the Kyoto.

Shiro: Very good Octopus. But take care of our friend business will you?

Octopus: Scoff Got it Meta Knight

Shiro looking at his computer wanted for Revenge.

Shiro: I will have my revenge and it's rightfully mine.

Next Chapter 1: Mission Start

The commander officer/bosses of White Shadow:
- New Octopus: Unknown
- New Raven: Unknown
- New Wolf: Unknown
- New Praying Mantis: Unknown
- New Monsoon: Unknown
- New Mistril: Unknown
- New Sundowner: Unknown

And Snake and Raiden with their other allies will be there soon in  the future chapters.