Xing heard a ring in her ear with those two screaming at each other and her head started to hurt and she just wanted to scram out of there.
Everything seemed surreal for her and in all that confusion, her rational brain started working and she knew that Shihong is planning something more but what could that be?
She is the one supposed to kill Old Rong and why would the one who is currently benefiting from Old Rong asking for her child in exchange for Old Rong?
It surely cannot be for him wanting a family!
Then she realised from the story Shihong told, when Shihong tried to leave the palace Old Rong asked for his blood to leave the palace and that is probably because the blood with the God Essence is needed to break the strong spell the Tianshi Emperor had put around the palace temporarily, for him to get out.