Ch 822: Five Years
'So, it was the remnant soul force of the Titan that was controlling everything from the dark!'
Ye Xiao immediately understood what is going on after hearing the voice of the original titan. That Titan was originally a False Divine God, so it is not that surprising for him to have left traces of his soul force inside his body that survived a few eons.
Talking about eons of Chaos, there is a vast difference between it and the eons of Heavens. The one year of Chaos might be equal to a hundred thousand or even a million or tens of millions of years. Thus, even though many eras have already passed in Heavens, only two eons have passed in Chaos.