Black Goku

You're a Saiyan, you can do it. You arrived on Earth with Vegeta, but after he changed and got married, you don't have romantic feelings for him; he was just your boss. You also changed and became a normal person. You work here and live like a normal person, but you still train with them. But one day you got a soulmate mark; you have no idea who it is.
Suddenly, Future Trunks arrives here and falls unconscious. After that, Bulma called Whis and told Vegeta and Goku to return to Earth, and they did.
After that, Trunks woke up and explained everything (about Goku Black and everything that happened), and after that, Trunks, Vegeta, and Goku went to the future to fight Goku Black and fix everything. The four of you—Vegeta, Goku, and Trunks—get into the time machine and go to the future.