Meaning...
We were supposed to hold out under his attacks until Hirohiko woke up, then use the Mangekyō Sharingan to undo the Masked Man's Wall of Amaterasu, and then capture the Masked Man? Then use the Masked Man to make him surrender or retreat?
As Yukina carefully considered Uchiha Nobuhiko's words, her expression gradually turned grave.
Although she was utterly unwilling to give up on Chiba, Uchiha Nobuhiko's words kept leaving her uneasy.
Given the current situation, because of the conditional cursed seal, Uchiha Nobuhiko had to contribute to the Masked Man's plan to seize the Nine-Tails and could not slack off. If he violated it, the cursed seal would destroy his heart and kill him.
And the condition was merely that he could not slack off; success or failure did not matter.
That made sense. Uchiha Nobuhiko was far stronger than the Masked Man. She had personally witnessed the Masked Man fight. Though his Space-Time Ability made him exceedingly troublesome, he still fell far short of Uchiha Nobuhiko.
She did not know what method the Masked Man had used to make the much stronger Uchiha Nobuhiko accept such a cursed seal, but whatever the method, it was impossible for the condition to be that Uchiha Nobuhiko would die unless he captured the Nine-Tails.
After all, Uchiha Nobuhiko was the stronger party. How could he possibly let someone weaker than himself hold his life and death in their hands?
The Masked Man must have taken Uchiha Nobuhiko's strength into account as well. To avoid forcing him into a desperate fight, worried that Uchiha Nobuhiko might be hiding some final move that would take them both down and cost him his life, he had set such relatively lenient conditions. The goal was simply to ensure that Uchiha Nobuhiko did not slack