From the very beginning of encountering this seal, He Ao suspected that the knowledge of this seal originated from a terrifying Higher Being.
But he didn't immediately associate it with the Mysterious Shadow.
It wasn't until he heard from Levi that Levi had been in the Northeast Region and confirmed that it was after that Levi became entangled with the Mysterious Shadow.
Combined with the fact that the power attribute shown by Vestan tends towards green, He Ao speculated that the abnormal power attribute should also be green.
And He Ao knows that his good friend has strong 'hostility' towards the Usurper God Tuning Master with the same gray power attribute.
A Divine Being with the same color attribute seems to have some kind of irreconcilable conflict with the Usurper God.
