I'd needed two Zenos. I'd needed one to go back to the original Earth and meet with his counterpart there, setting the stage for their Zeno Expo, but I'd also needed a second Zeno to rule the timeline where Trunks' future was on. In the canon, this had been solved by Whis sending Trunks and Mai back to their own timelines, but before Goku Black had ever existed. This had created a separate reality with two Trunks' and two Mais, essentially creating a new time ring that Goku Black hadn't ended up using. While the original timeline had been simply turned into empty space, Goku Black hadn't existed in this timeline at all, creating an entirely new branch in which Whis could simply off Zamasu's counterpart without disrupting past events.
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Dragon Ball Z: The Core
Anime und Comics · Aeon0
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