Y/n pov
Beerus: what's wrong you say that as if you refuse to believe the word of a god
F-Trunks: I know I should trust you but, I just can't do it
Beerus: you're a hard-headed one aren't you
Then he started screaming and throwing a tantrum as whis dragged him away
F-trunks: sorry but I have to go
Vegeta: you need to know for sure huh
F-trunks: yes
Bulma: maybe it's changed, and perhaps it hasn't but, look on the bright side, either way, you're all fueled up and ready to go oh, but first let's have a meal its time travel, so there's no rush at all
Goku: good point
Time skip
After the food was finished, everyone started to chow down as trunks weren't eating at all
Y/n: hey trunks
Both: yeah what
Y/n: oh right bigger trunks, you need to eat otherwise your just going to be a punching bag if we fight zamasu
Beerus: what's this even my student doubts my Divine wisdom
Y/n: no not really but if the future hasn't changed then we need to be there to help
Goku: y/n right there always a chance
Vegeta: well we can't go in without a plan of attack
Everyone:!?
Goku: you're voting for caution that's hardly your style Vegeta
Vegeta: the fact is we can't afford to lose again the future remains unchanged if we don't play this right
Trunks: fathers right
Goku: Hey, there's nothing to worry about I promised trunks
Then everyone finished eating as everyone was getting ready to leave
Gohan: so we're going back
Y/n: yeah but this time you're staying back
Gohan: but
Y/n: trust me on this one Gohan I underestimated black once and almost got you killed, I'm not going to do that again, plus we need someone to stay back, just to keep an eye on the earth while were away
Gohan:(nods) right
Y/n:(nods) 21 I don't know when I'll be back so don't wait up okay
21: juts make sure you come back looking better than the first time
Y/n: hehe, I'll try
Then they started to pile in the time machine while I held on to the outside leg as the device brought us back to trunks timeline
Bulma: so where too now
Trunks: well-
???: commander trunks it's you! You did come back
Then one of the soldiers came running up to us
Trunks: tell me is everybody okay
Soldier:... mai's not she was trying to help some soldiers flee from black when she took a bad hit
Trunks: take me to her
Then I felt blacks energy on the move and in a rush
Y/n: Goku, Vegeta
Vegeta: yes, they're on there way now
Goku: trunks go with Bulma to help mai out and take these with you
He tossed him the bag of Senzu beans
And trunks nodded as he and Bulma went to mai
Y/n: let's go
I took off into the air as I followed the energy trail and found black and zamasu standing there waiting for us
Zamasu: I see you have returned dear Saiyans
Black: welcome back I do appreciate you returning so I can become even stronger
Vegeta: this will be no repeat of our last fight!
Then he transforms into Super Saiyan blue and took off after black
Goku: Vegeta. Wait! What about the plan!
Vegeta: all I know is is that I'm taking black!
Then they started fighting in mid-air but backed off, returning to their base forms as their fist collided creating an aftershock
Black: you love nothing more than to defeat me, you crave it. Since you lost so quickly last time
Vegeta: shut up! I didn't come to this Wasteland you created for myself! It's for my son!
Black: well that's not very Saiyan of you
Y/n: we know the truth, so there's no point in hiding it you killed your master to get that time ring then you wish to be Goku so you can have a body and power to match your superseded ambition
Black: oh my aren't you quite the detective, but do you know what I did after I gained this body
Goku: what's that
Black: I killed you then I killed vegeta and then last, but not least I killed Goku death by his own fist
Black: give yourself credit y/n oh, you played a massive role in this when you challenged me and made me suffer defeat at the hands of a mortal, and that was the last straw the last motivation I needed to Chase my righteous dream. It was in that moment as you Tower above me as I resolved the cast off my body and found one even better. You gave me that push, and you gave me this power
Y/n: how are you even still here I'm pretty sure I destroyed you
Black: well that's the thing about these rings they protect me from any alterations in the past
Trunks: what!
Then black and zamasu got into position and shot two ki blast that combines as we all transformed and blocked it
Y/n:(ssj4) bastards
Vegeta(SSB): that was strong, you okay trunks
Trunks(ssj2): yeah
Goku(SSB): I've had enough of this!
Then he takes off after black
Vegeta: wait you idiot don't you remember he's invincible
But Goku didn't listen as he charged ahead with a ki ball in his hand suddenly zamasu moves in front of you with no guard as Goku blasted him in the face. But zamasu's they started to regenerate once the smoke cleared
Goku: you bastard!
Goku tried to punch zamasu but was blocked and black too the opportunity to try to cut him down with his ki blade, so I used Instant Transmission and got in front of black punching him in the stomach sending him back
Black: morals, always with the sneak attacks
Y/n: please I don't need to sneak around to beat you
Goku: y/n watch out!
Then I noticed zamasu about to stab me in the back but Goku saved me using instant transmission
Y/n: thanks
Goku: no problem
Black: let's continue with the story Saiyans. I need to continue with my journey for complete Justice, but I need the perfect sympathizer as my Ally a fighter who I can trust who agonize just as I did over the Fawley of mortal kind someone I knew who wanted that same brand Utopia in their heart
Zamasu: so in other words, I'm what he needed in this reality you see as an alternate future I was floundering in despair I spent years limiting Mortals but lacking the will to act
Black: I knew from the box of rings that this parallel world existed, so I came and Forged my alliance by creating a new Supreme Kai
Y/n: and you killed gowasu
Trunks: what!? You killed your own master
Zamasu: yes I did, but it was all in the name of Justice, so there was no need to mourn his death once I was propelled into action we made the wish with the Super Dragon Balls to make me invincible
Black: and once our wishes were complete we found the Super Dragon Balls once more and destroyed them
Everyone:!!???
Goku: you destroyed the Super Dragon Balls
Black: much more than that oh, we had to keep the other gods from interfering I use your strength to kill every other kai in this Multiverse
Goku: all of them
Zamasu: that's right Goku that means there are no more gods in this timeline to stop us we have all the power here
Black&zamasu: the two of us alone
Zamasu: all this destruction was unfortunate but necessary to achieve are virtuous plan project Zero Mortals
Vegeta: distinct name I guess we know what you want, what sort of world would you have if you had nobody in it
Zamasu: a world of undisturbed Beauty. Mortals are a are you a mistake that staying the Majesty of the Gods, by eliminating the Mortal creatures we can restore the world to its original splendidness and reclaim our most beautiful creation
Black: we've already cleansed the number of planets with there repulsive of mortal blight.
Zamasu: and now we will cleanse the Earth your filthy kind is the worst of all. How many times have your conflicts nearly destroyed this planet and threatened to destroy across this universe? And since you've learned to the fight time, you can spread your violence even further.
Black: because you are the ugliest, we are sentencing you to the most substantial punishment. I just fear and Terror that benefits your wicked crimes. And none of you will escape it.
Then they charged at us, but we countered by blasting them with a garage of ki blast by as the smoke cleared zamasu got in the way shielding black
Black: this is it sayings for the sake of our most glorious project, you will die today
Then vegetal and trunks went after black like me, and Goku went after zamasu, and you tried to attack him, but he went to help black and before I knew it the blasted trunks and Vegeta with the massive ki blast again
Nobody pov
Goku got kicked by black against a wall as zamasu appeared in front of me and blacked stabbed me through him
Goku: agh!
Y/n: Goku!
Black, you bet not move another step Saiyan, or ill cut him in two
Then y/n backs off a bit
Zamasu: I'm surprised that you too I thought you were going to ask this question sooner but aren't you worried about what happened to your families
Y/n:!?
Goku: my family!
Zamasu: why don't you tell them
Black: where does one begin such a gripping Tale?
Zamasu: yes, good question why don't you start with the wish after you took the time rings to gather the super dragon balls and summon the Beast
Black: ha, very well, once I made my wish to swap bodies with Goku I could feel the power emanating from it but since I was already in that timeline I thought I might as well speed up our project I murdered Goku and then culled the rest of his family one by one
Goku:!!!!!
Black: and who could forget you y/n the most trustworthy of all Saiyans you didn't even know or care to check if Goku was acting out of character and it cost you your life and not only you're's the life of your pregnant wife and unborn child
Y/n: no...you didn't
Black: yes I had the time on a traditional striking your wife down right here
Then he points to his stomach as both Saiyans we're quite
Black: that's right, continue to feel that good despair until finally meet your wives and children in hell!
Y/n: I won't, I'll never forgive you, I kill you, I kill you!!!!!
Goku:(growling) you monster, you'll pay for that, you'll pay for that!!!!
Their power rose along with their anger and frustration, then y/n moves so fast that black wasn't expecting it and got punched in the face so hard his eyes faded in and out
Then he was sent flying back while sliding along the ground as you took the opportunity to gut much zamasu and kick him in the opposite direction as black came flying back with his ki blade only to be dodged and need in the gut by both y/n and goku while y/n grabbed goku black in a full Nelson started goku
Punching him non stop but black tired to kick goku but missed as y/n Lets him go as goku placed black in a full Nelson and y/n was the one delivering heavy blows to black seeing his comrade in trouble zamasu tried to help black by attacking goku, but he uses Instant Transmission to dodge and line up with y/n as he had a ki blast ready and in that instant zamasu realized his mistake as both Saiyans charged their signature moves and blasted zamasu and black in point-blank range
( just picture that as you and Goku but you as Super Saiyan 4)
Then zamasu and black
Goku: I'm not done with you!
Y/n: no, wait!
Then goku rushed in as the smoked covered him, but there were sounds of a battle and as the smoke cleared goku was on the ground severely wounded with black standing on his head
Y/n:(ssj5) bastards!
Y/n rushed in as he tried to attack black, but zamasu attempted to attack him, but y/n blocked but took his strike but taking his eyes off of black was a mistake as he punched him in the face making y/n lose balance that's when zamasu grabbed y/n in a Full Nelson
Black: isn't this what you mortals call irony
Then black stabs y/n through the chest
Y/n: gah!
Zamasu: how does it feel about dying the same way as your wife for wife did
Y/n: won't you even think about her!
Then y/n outmuscled zamasu getting out of his grip and kicking him back while simultaneously punching black in the face and they regrouped in the sky together, and y/n landed on the ground
Black: I must admit for Immortal with no Divine energy you surprisingly too well in a fight
Zamasu: you are the lowest kind of mortal one that does not deserve to stand up to the will of the Gods
Y/n: you said you killed all the gods right
Black: yes all of them
Y/n: well you missed one
Zamasu: what I think we'd know if-
Then zamasu and black looked on as y/n power began to rise
Y/n: let me show you, I was saving this for goku and Vegeta by your a particular case one I need to erase or ill never live it down
Then y/n clenched his and screamed to the top of his lungs as a blinding yellow light shined and as the light dyed down zamasu and black looked on in shock
Black: so it's you, I thought I sensed it
Zamasu: the one with the power of Destruction
Y/n: this is where both of you will die
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