Luck had gotten Nio in a bad position and so he had to choose what he was going to do about this and if he was going to save himself or his brother and he must choose which one he was going to do about all this and if he was going to win or not.
Nio had one option and that is to choose to save his brother and if he does that then Luck will have to let them go and let them make their own decision for themselves instead of following leaders that show them no love.
The two brothers were going to be together again. Nio wanted his brother to be with him and not die with him in battle all Nio could think about is his brother from the beginning.
When they were young Nio and Fio were nothing more but two brothers that didn't know that the world was so vast and cruel. They were just little kids when they went out to explore the world that was far from their own world.
"Brother, do you see what I see in the universe?"