Son Goku: Saiyan from Chaldea

Chapter 2: The Grand vs the "Wise"

"Take this!"

Goku would send out a flurry of punches graving the skins of Goetia before kicking him away. Goetia simply responded by parrying Goku's move and striking him in the guts.

"GWOAH!"

Goku screamed in pain, before carrying himself up and using instant transmission to teleport behind Goetia and ramming his leg into Goetia's head sending him flying towards one of the floating debris.

"Hah! Looks like you do have some strength in you after all. I suppose you're worth destroying."

"Burn."

Goetia let out multiple beams out of his arms to which Goku evaded by slight but nimble dodges before shooting out his own ki blasts towards the Evil of humanity.

Ritsuka stared at the grand servant who fought to kill yet also seemed to enjoy the battle, she wished to experience his happiness but shrugged it of as selfish and stood up going near the battlefront. Son Goku was her servant and his master, she couldn't be third rate now, she needs to make it up to him for summoning him to this singularity.

"GOKU-SAN! I can unlock one of your ascension right now, would you like for me do that?! It won't be full power since it's a forced ascension but would you be okay with 45% of your first ascension?!"

Goku stared at the young girl and declined her offer. This fight was one of a kind. The protector or Earth vs the Evil of Earth. Goku simply got excited as he started to power up into a technique.

He screamed.

"KAIOKEN!"

A red flash of aura burst around his body.

"I hope you're ready for this Goetia, the Kaioken amplifies my speed and strength and all the other senses I use in a battle!"

Goetia simply stared before teleporting in front of Goku letting out a fierce barrage of punches to kill the man before he became a bigger threat to him.

"What'd I say about amplification of power?!"

Goku was behind Goetia before smashing his fist into the back of the Beast who flew back into the debris he was launched into earlier fully breaking and landing on one of the deserted islands.

"You bastard..you're nothing compared to me!"

Goetia teleported near by Goku before blasting a purple circular beam in-front of him.

"Ungh... AGHHH"

Goku screamed in pain as the heat of the blast burnt some parts of his skin. Goku pushed the attack upwards before kicking it back to Goetia. Goetia blinded by his own attack was surprised when Goku who was fully back to full fighting compacity struck a fast punch to his face screaming.

"Kaioken X 10!"

With the amplified strength of Goku by 10 times made Goetia fall onto the ground before Goku followed up by charging up a kamehameha.

"Ka...meh...haa...mehha...HAAA!"

Goku blasted the blue light of KI towards the beast who looked at the beam coming shocking him before it collided onto him engulfing the beast. Goku smiled but quickly got back into fighting position to see the beast who had blocked the blast with his hands covered in-front of his chest. 

"Impudent, impudent, impudent, impudent! To think someone like you can damage me to this extent. FINE, YOU SHALL SEE MY NOBLE PHANTASM GRAND SERVANT, IF YOU LIVE TO TELL THE TALE, THERE WILL BE PRAISE ON YOUR NAME."

Goetia began to charge his attack. 

"My exploits, my ideals, my birth-- Experience their truth!

This will planet will be reborn.

All life shall become a thing of the past!

Praise me... My name is Goetia!

King of Demon Gods, Goetia, who will burn away all of humanity!"

The purple ominous ball of energy flew towards Goku. Goku was panicked. HIS MASTER, THE OTHER SERVANTS, CRAP, HE HAS TO TRANSFORM NOW!

Goku dropped out of the kaioken before screaming and charging up into one of his strongest forms. Super Saiyan God.

"IT'S TIME I TAKE YOU SERIOUS. TAKE THIS. KAMEHAMEHA!!"

Goku quickly launched a limit-breaker kamehameha in his godly form towards the beast and the two beams clashed.

Ritsuka watched in awe as the foreigner and the beast clashed beams. THIS WAS LIKE THOSE ANIME BATTLES SHE SAW WHEN SHE WAS YOUNGER BUT NOW SHE WAS IN COMMAND OF ONE OF THOSE. QUIT FUCKING THINKING CHILDISH STUFF. SHE NEEDED TO HELP GOKU. RIGHT NOW. NOT BEFORE SHE LOST ANOTHER PERSON TO THAT DAM BEAST.

Ritsuka ran towards Goku and used one of her command seals to ask Goku if he could release his Noble Phantasm.

"You sure you want me to release my Noble Phantasm? Well can't deny my contractor now can I hehehe.. well Goetia, it's been a pleasure fighting you but my master has asked me to use my noble phantasm. So.. let's end this!"

As the two beams clashed and exploded mid air creating smoke. Goku started to de-transform before transforming into one of his least experienced form. Mastered Ultra Instinct.

Schwing

True Noble Phantasm of Son Goku:
Tale of the Monkey from birth to finish!

"So you've waited long to hear my tale, come along then and you'll see my path to power, but before we continue can you take this one head on?"

"Alright then.. ka....me........ha........me.......-"

Goku now transformed into his Mastered Ultra Instinct state instant transmissioned in front of Goetia shocking the giant as he looked slightly up to see the silver glow, the "perfected" form. Mastered ultra instinct. Goetia tried to brace for impact but he was too late as Goku in MUI state launched a universal transcendent kamehameha to blast Goetia into oblivion into the void deep down.

Ritsuka stared dumb founded, watching as Goetia who she once deemed unbeatable be taken down in a fast manner with one singular NP, no she could not doubt Goku's strength, he was strong, rightful to be a grand servant, one that protected humanity, she felt bad knowing he would most likely depart soon now that his duty was over after taking out Goetia.

Goku went back to his base, he knew that Goetia was still alive but he didn't want to steal his master's victory, he went back to her and saw her with tears in her eyes thanking Goku for stopping Goetia.

"I didn't kill him."

She simply froze. 

"He's coming back, not in beast form but in his humanoid form, I know he's weak enough for you to take him master, so don't take it as me giving him mercy, it's something for you to do to make yourself better, personally killing is a wrong for me as I believe we can see the best in everyone but you're my master so it's your choice and I'll stick by it."

Ritsuka looked up at the man who had a stern smile in his face and she simply broke into tears in his arms. It had been a long time since she had cried this much, perhaps to long but before she could continue, another voice came out.

"The Demon Gods have burned away. My temple is destroyed.

My grand plan for the Incineration of Humanity dies with me.

But, I will at least deny you this final victory.

Let us begin, Master of Chaldea...

I shall annihilate you, and all you've achieved, with my own hands."

Goku stared at Goetia who was in his King Of Human's form and back at his master with a strong resolute face.

"Master, if you want me to take care of him now when he's weakened, although it makes me a bit sad, I can still do it for you if you're not ready."

Ritsuka simply said "thank you." to Goku but went forward herself and Goku simply accepted her choice to fight the once before Beast turned human.

Goku watched the female and male swing back at each other with brutish punches as Ritsuka had the upper hand having not exerted as much energy or being damaged before that Goetia had. Ritsuka overpowered the man with tears in her eyes knowing that killing Goetia would not bring Mash back but simply did it in order to avenge her in her memory.

Goku teleported next to her before she lost herself to the desire.

"Stop it. He's down now. You did what you needed master. It's time to go now."

Before Goku teleported out of there, Goetia spoke out once more with a small smile in his face.

"Servant of the grand status, your power truly is interesting, I wish we could have met under different circumstances though I am beast, that would be very unlikely and you.. it was...a truly splendid life... enjoy it whilst you can before.."

The man simply faded to yellow and temple began to break down after it acknowledged his presence was gone. 

An intercom came up.

"Ritsuka.. Goku.. I see.. she's not there... THATS NOT IMPORTANT RIGHT NOW, GOKU CAN YOU GO TO THIS AREA HERE? THE TEMPLE IS BREAKING DOWN AT A FAST RATE AND YOU AND RITSUKA WILL BOTH END UP SWALLOED BY THE VOID!"

Goku nodded at the doctors plea and teleported himself towards the energy that was a leyline that allowed him and Ritsuka and the other servants Goku went back to grab back into Chaldea. 

When he came back to Chaldea with the last servant in his hands, Goku saw his master hugging a lavender haired girl, she was crying tears. Not of sadness but of happiness and relief. I wonder, does master enjoy this person's company that much to cry that much tears? Oh well, he didn't mind seeing his master happy, it was a nice relieving scene to him.

( Wordcount 1587 )

IN THIS CHAPTER, WE GO OVER THE EPIC BATTLE OF GOETIA AND SON GOKU WITH HIS MASTER RITSUKA GUDAKO TAKING CARE OF GOETIA, THE KING OF THE DEMON GODS AND KING OF HUMANS.
FIND OUT NEXT TIME ON FGO Z WHAT UNRAVELS AS GOKU MEETS SERVANTS OF THE FATE GRAND UNIVERSE.