[He stares back, knowing that determined look. He knows Trunks wants to do whatever he can to make things right here too, just like he did back then. And he knows he'd do anything to achieve that goal.]

You can't.

[It's painfully objective.]

You don't get the choice to stay. I do not have the choice to stay. When we are sent back home, we go, and that's that. As much as I'd like to return home, I also hope the day does not come that I leave because I have unfinished business here. I would allow you to stay if you had the choice, but sadly that is not the case. That is simply how this world works, Trunks. You may return here someday. But for what is happening now, you will leave, willing or not. This- [He gestures to indicate all of Luceti-] happened a year ago as well, when strange visitors without wings arrived without warning, and disappeared without a trace two days later.

I'm sorry Trunks, but you're going to have to accept the fact that you don't get a say in this. It may be different one day, but for now this is the reality of the matter.