Time flew by, and three days passed in the blink of an eye.
"Now that the Androids have finally been eliminated, we can take a break."
Trunks lay on a huge boulder atop Mount Paozu.
The whole Earth was rebuilding now.
The Androids had all been eliminated.
Nearly all of Earth's buildings had been destroyed.
Taking a break from his work, Trunks had come to Mount Paozu to find Master Gohan.
Master Gohan was living on Mount Paozu with Chi-Chi, Trunks's mother in the Future Timeline.
"Trunks, you're the only fighter left in this timeline."
"You absolutely mustn't give up training."
"Earth will still need your protection in the future."
Son Gohan thought of the evil Supreme Kai Zamasu and Goku Black, who wore a wicked grin, both of whom would appear in the Future Timeline.
Zamasu had originally been a Kai of Universe 10.
Because of his tremendous strength, he had been chosen by Gowasu, the Supreme Kai of Universe 10, as a candidate to become the next Supreme Kai.
But his twisted sense of good and evil made him unable to tolerate any wrongdoing he perceived.
Though he was a God, he was prejudiced against mortals.
He believed that mortals—all intelligent species in the universe who weren't Gods—only misused violence and started wars.
He disagreed with his master, Gowasu, over whether mortals were worth protecting.
In the end, he devised the horrifying "Zero Mortals Plan," which would affect multiple parallel universes.
Goku Black was actually Zamasu, the Supreme Kai of Universe 10 from another timeline.
In another timeline, the Apprentice Supreme Kai Zamasu succeeded in killing his master.
He stole the Potara Earrings and the Time Ring, becoming the Supreme Kai of Universe 10.
Then he used the Super Dragon Balls to switch bodies with Son Goku, who