" ...Will it weigh on his conscience as well?"
Although Old Gu was curious what actions the Heavenly Emperor might take now, it mattered less since he had done this merely for his old friend's sake.
As for the burden of betraying his principles, his millennia-long life had taught him to bear any wound, be it of the body or that of his Dao heart.
If only he knew that his actions would have far-reaching consequences that he couldn't imagine now.
. . .
After the rage-filled Celestial Phoenix calmed down, she retreated into her personal dimension.
From Ember's side, Baoshi stayed back as a precaution.
On the opposite side, Zihao did the same. He guided Kai and Hakuja and berated them for this reckless attack. They hadn't waited for permission, which would have resulted in their total annihilation.
Unlike them, Ember was very independent. The Lord of Shadows cared little about how things were handled as long as there were results.