As Black Tortoise pondered, Mianmian also reflected.
In Vermilion Bird's memory, while battling the Heavenly Demon, some structures on the ground could be seen.
Could she perhaps ask her great-great-great-great-great-nephews to reproduce the scene and see which year it was? Maybe with this information, they might find some clues.
Mianmian shared her thoughts, and Black Tortoise nodded, thinking it was feasible.
"Then good, let's collect all the information and see if there are any commonalities."
Emperor Fengdu had also mentioned that the Heavenly Demon might make a comeback.
If it was just Mianmian alone, reproducing the scene would be difficult. But with Chenzhou's help, it would be a piece of cake.