Gu Jianlin gazed at the blood rain falling from the sky, feeling a deep and complex surge of emotions within him.
It turned out that the Ancient Gods' control over their Divine Servants operated on such principles: as long as someone consumed the Ancient God's Blood they created, they could attain evolution beyond the limits of humanity. But the cost was being marked with their emblem.
From then on, they became slaves to the Ancient Gods, stripped entirely of freedom.
Life and body enslaved, mind and will subjugated, commanding them was as simple as issuing a thought.
And this did not even require Ancient God Transformation.
Perhaps when the Ancient Gods descended upon this world, they realized their power was rejected by the laws governing this realm. Thus, through transforming their Divine Servants in this peculiar manner, they sought to expand their influence and achieve domination.