The Ancestor of Ten Thousand Demons spoke truly, Yang Yan knew he was the demon in the hearts of the highest existence in the Buddhist Sect, so he would not easily release him.
After all, the strength of the Ancestor of Ten Thousand Demons, even after being suppressed for a million years, could not be so simple. He was undoubtedly extremely powerful.
Otherwise, how could the Great Compassionate Ancient Buddha abandon the Immaculate Saint Buddha Golden Body to suppress him here?
Moreover, this confirmed one point!
The Ancestor of Ten Thousand Demons was not lying; his identity was indeed the demon within the heart of the Ancestor of Ten Thousand Buddhas.
Because both Yang Yan and the Ancestor of Ten Thousand Demons clearly knew.
The stronger the Ancestor of Ten Thousand Demons, the less likely Yang Yan would release him.
If he could downplay his strength, the Ancestor of Ten Thousand Demons would claim to be weaker.