While training on Earth, months continued to fly by as I either meditated, trained my body, or did other things to improve my power, nothing interesting has happened since I decided to stay on Earth after the universe 6 tournament, although currently, I can tell Beerus is on the planet, probably enjoying some human food.
In the middle of my training, I suddenly sensed the arrival of a new ki appearing out of nowhere, which allowed me to confirm that Goku black will be appearing soon as I could sense two beings with the exact same ki signature, and that can only mean Future Trunks has arrived.
Stopping my training, I take off my weighted clothes, which don't help me much anymore, and store them inside one of my pants pockets before flying in the direction of Capsule Corp. Luckily I arrived just in time to see Trunks wake up and suddenly attack Kakarot, eliciting confusion from everyone and my arrival didn't help with the confusion as almost everyone is still wary of my presence.
Bulma-"Trunks calm down, your safe right now, alright?"
When Trunks heard Bulma speak, he stopped focusing on Kakarot and looked around before eventually falling back on the chair he was laying on.
Trunks-"So, I'm assuming I'm back in the past mother?"
Bulma-"Well, for you, yes, but to us, it's still the present."
Vegeta-"So boy, what happened to make you seek help from us again?"
When Vegeta asked Trunks that question everyone's ear's perked up and they all started listening intently as Trunks started explaining about his enemy.
After about 10 minutes later of explaining, everyone now understood what Trunks had been up against and why he was forced to go back into the past and seek help.
Vegeta-"So, someone took over Kakarots body and started a rampage, which we all died too, and now this Goku Black as you call it is terrorizing Earth?"
Trunks-"Yes, basically."
Goku-"Trunks let's fight, I need to get an idea of how strong this enemy is."
When Kakarot said that, he flew off into the sky and hovered directly over the backyard, Trunks seeing Kakarot, accepted his invitation and followed right after him.
Bulma-"Haa, why do they have to fight right here? Luckily I expected something like this would happen one day and prepared in advance."
Once Bulma finished speaking she reached into her lab coat pocket and brought out a control device, after poking a few buttons, parts of the Capsule Corp buildings started glowing before shooting a beam towards where Kakarot and Trunks had just started their battle, and once the beams were just about to hit them, they stopped and started forming a big bubble that completely surrounded them, preventing any shockwaves caused by the battle to leave.
Bulma-"There, now we don't have to worry about them destroying the place."
As we watched the battle unfold, Trunks eventually transformed into SSj2 drastically increasing his power, but it was still far below Kakarots as Trunks still has mortal Ki. Once Trunks transformed, Kakarot told him to hit him with his strongest attack, complying, Trunks unleashed all of his power and sliced him from above with his sword, and unsurprisingly Kakarot easily caught his sword between his fingers, but the impact caused the dome surrounding them to shatter, immediately causing the release of such ki to create a huge gust of wind with Trunks at the epicenter.
While Trunks was shocked by the power Kakarot displayed as he effortlessly caught his attack, Kakarot threw him back before hitting him to the ground, easily winning the spar.
Goku-"Hehe, I must say Trunks you're quite strong, and if you can't defeat that black guy, then he must be even stronger."
Trunks-"Yeah, but with your power, it'll be easy for us to defeat him."
While Trunks and Kakarot were talking, all of sudden above us, a black hole in space appeared catching everyone's attention, as everyone continued staring, the black hole continued to grow in size till it was the size of a small house before stopping, and coming out from the center of the black hole was Kakarot in all black clothing, or Goku Black.
Trunks-"Dammit! Black, how did you get here!?"
Goku Black-"So this is where you went, back in time, and to answer your question, I just followed the same pathway you used while traveling between time and space."
Trunks hearing that, grabbed his sword and was about to charge at him, but I flashed behind him and stopped him before he could do something stupid.
Sage-"Don't bother, you're too weak."
Trunks-"huh what, SAGE!? What are you doing here, last time I saw you was when you fought against 21."
Sage-"We can talk about it later, but if you don't mind I'll go and kill him."
Letting go of Trunk's shoulder, I fly up into the sky towards Goku black and hover a few meters in front of him.
Goku Black-"So your name is Sage, that woman warned me that I'll probably find you here and she told me that If I encounter you I would die, but even if you're stronger than me it doesn't matter, I'll still kill you."
Raising an eyebrow at his words, I question him back.
Sage-"Tsk, so 21 is currently in your timeline. Thanks for the information, if I didn't eventually go after her I'm sure Whis would've gotten suspicious of me."
Right, when I finished talking, Goku Black shot a ki blast at me, but I just swatted it away, causing him to raise an eyebrow at the show of power. A second later, he charged at me while I charged at him as well, once we collided I released an unrelenting assault of attacks on him, not even giving him a chance to counterattack as he is too weak to do so. While I was pummeling him, I noticed his power started increasing, but even so, nothing changed for him as the amount of power he was gaining was Kakarots power that he hadn't fully unlocked yet, nonetheless, it wouldn't matter until he transformed into SSjR I wouldn't have to take off the bracers.
While in the middle of the fight, I suddenly thought of trying to use Goku Black to lure 21 out.
Sage-'If I kill him, will 21 appear? Don't know but it's worth a shot.'
Following my idea, I instantly go for the kill, aiming to rip my hand through his body where his heart is, Goku Black seeing my intent to kill him quickly gets flustered while trying to dodge, but the difference in our power is far too great for him to be able to do anything, and right when I was bout to touch his chest, my hand was stopped mere centimeters away from his chest by a pink hand I'm all too familiar with.
Following the arm to its body I see 21 standing right behind Goku Black with her hand stretched around his body.
21-"So eager to see me aren't you, cupcake?"