The Heaven-Mending Stone proactively asked Zhou Yan for a favor.
For any other Heavenly Heart, a favor might not mean much.
But Zhou Yan knew that sometimes a favor could be more important than anything—especially in the current situation, where he had nothing to repay with. In the future, it would be completely different.
However, if the Broken Stele were the Heaven-Mending Stone, making such a request would indeed be the wisest choice.
It evidently valued Zhou Yan's potential, his future creation, not his current abilities.
What abilities does Zhou Yan have now that are worth its attention? Worth its need?
On the contrary, if Zhou Yan couldn't reach the future, the Xuanyuan Sword, such an immortal weapon, would return here after losing its master, and for the Heaven-Mending Stone, there would be hardly any loss.
This means that when the Heaven-Mending Stone made this decision, it was already invincible.
