Unknown Location: Trunks' Timeline

ALL OF EXISTENCE...GO AWAY...

GRAAAAAAAAH!!!

*BOOM!*

In one great flash of light, an entire Timeline had vanished in the blink of an eye. You might be wondering, how could such a scenario be? In order to tell, let's back check.

—————

In this world exists a powerful line of gods. Each having their own purpose. The Gods of Destruction, as the name suggests, destroy planets and other things in their Universe to maintain it's Balance.

Next to them are The Gods of Creation. Also known as the Supreme Kais. While the Gods of Destruction destroy planets, the Kais create new ones in their place. This creates the never ending cycle of how life plays out in The Universe.

This is Zamasu. A Supreme Kai in training. Star Pupil if the Supreme Kai of Universe 10, Gowasu. Nearing his retirement, Gowasu was in need of a successor, one worthy of taking his place.

However, unlike most Kais, Zamasu didn't quite approve of the existence of the Mortals that populated the cosmos. Seeing them as nothing more than barbaric creatures incapable of redemption.

Gowasu didn't approve of Zamasu's behaviour and actions towards Mortals, yet he kept him around as his successor regardless. Eventually this would lead Zamasu to going down a very dark path.

One day, Zamasu encountered a Mortal unlike any other. His name was Son Goku. He acted playful and friendly, yet his lust for combat was matched by no one. They engaged in a battle in which Zamasu would lose to, and thus, Zamasu had reached his limit.

Killing his master when his back was turned, he would eventually gather seven Legendary artifacts known as The Super Dragon Balls and steal the body of Goku, the Mortal with power that surpassed even the Gods.

With the theft of the Saiyan's Body, Zamasu would go on to kill Goku, as well as slaughter his family along with him. And thus, Goku Black was born.

He would then go on to travel through time, wreaking havoc upon countless worlds, and even doing as far as to team up with a different Zamasu from an alternate Timeline.

We could be here all day explaining how that works, so to cut things short, Goku Black and Zamasu were now working together to execute their Zero Mortal Plan.

With the help of Goku and his rival, Vegeta, Trunks a fighter from the Future, would combat this deadly duo time and time again, but each time, Zamasu and Black would only grow stronger, until eventually...

HAAAAA!!!

GAAAAAAAH!!!

Trunks and his allies' efforts had finally paid off. Zamasu had gone as far as to merge with his counterpart, and yet, Trunks' Sword of Hope was able to cut him down. Splitting the unhinged God in two.

Completely vaporizing, Trunks and his friends thought that they had won, however, the wish made by the Divine Dragon did not fail Zamasu. For while his physical form was gone, his presence remained.

Zamasu had returned, and had swallowed up the entire planet in a matter of seconds. Merging with the very fabric of space and time itself, there was truly no escape from Zamasu's Divine Wrath.

Completely annihilating every being on the Planet, it had seemed that Zamasu had truly won. Everyone and everything Trunks tried so hard to protect was gone, and with no way to fight against a being merged with the sky, there was nothing they could do.

Or at least...that's what he thought. With a lucky visit, Goku had obtained an object that would save them all. A button. One push from this button would summon Grand Zeno. The Omni King who stood above all else, and commanded all of the Gods.

Disgusted with what he saw, The Omni King did not hesitate to erase the entire Timeline in order to be rid of Zamasu, and thus, he met his end at the hands of the most powerful being of all.

Zeno: ALL OF EXISTENCE...GO AWAY...

Zamasu: GRAAAAAAAAH!!!

And as quickly as Zeno had arrived, everything was gone. Trunks and his friends were able to escape without a second to spare.

Zamasu, the mentally insane deity who despised all Mortals, was finally gone. Timeline and all. Or was he?

???

Somewhere between all Timelines, a small bit of Zamasu's essence remained. However as the rest of him was being erased, he didn't have much time before he inevitably disappeared.

Zamasu: GAH! Damn it all!! That Brat!!

Not knowing what to do, Zamasu had to think fast, otherwise this would be the end of his plan. However in the final moments of his existence, one last idea popped up in his head.

Zamasu: HA!!

Letting out a shout, a small piece of him shot off from his face, at the same time, he had opened a rift through Time itself. The small particle flew through the rift as Zamasu watched it close.

Zamasu: Ha...haha!! My role may be finished, but The Zero Mortal Plan will survive!! GAAAAAAH!!!

And with that, Zamasu was completely wiped from existence. However in his last moments, he had store the Time Ring inside of his smoke-like body, and spat it out, as well as a small part of his soul.

Time Skip

At this point, The Time Ring had merged with Zamasu's flesh and started manifesting into something completely new. Some of Black's Skin Cells were still on the Time Ring, so with Zamasu's essence and Black's Flesh, they had merged into something completely new.

It took weeks, possibly even months for it to fully manifest into a physical form, but Zamasu's last resort was a complete success. This new manifestation of Zamasu and Black, was of course you.

Y/N: *GASP*...*Pant*...*Pant*...*Pant*...What is this?! What's happening?!

Your outfit was identical to Goku Black's attire, but your body was almost completely different from his. You didn't know what you were, nor did you know why you existed.

However, mere moments after your birth, in your mind flashed everything that had happened in Zamasu's eyes. The Zero Mortal Plan, the countless planets slaughtered in the name of divinity, the opponents they fought, you saw it all.

Y/N: I see...that is...Zamasu...and that is Goku Black...my creators...

You then looked at the ring on your finger. It began to glow as you smirked and laughed, realizing what had happened for you to be created in the first place.

Y/N: Hahaha! I see now...this Ring...it had attempted to recreate Goku Black...but couldn't fully pull it off...so instead...created me...I'm not Goku...so I think I'll go by...Y/N...Y/N Black...hahaha! Yes! I like the sound of that!

All of a sudden your body started emitting a dark energy that bursted and coated your whole body. Looking at your surroundings, you were happy to have been created.

Y/N: What an interesting body...however it's weak...much weaker than Goku's...this body craves combat and bloodshed...yes...I too have a Saiyan's genes...becoming stronger will be a breeze with my new abilities! Hahaha...AHAHAHAHAHA!!!

And thus...Y/N Black was born...free to bring down more destruction on the Universe.