The reason the Demon Lord's face was filled with disbelief was that he did not expect that Mo Lin had actually cultivated the Heavenly Demon Evil Kill!
Heavenly Demon Evil Kill, that is one of the ultimate skills of the great three Demon Lords, Po Jun Demon Lord.
The Demon Lord has served the great three Demon Lords for many years, and naturally, he knew very well that Po Jun Demon Lord would never pass this Nine-star Demigod Level ultimate skill to others!
And now, Mo Lin using this ultimate skill means that he... actually secretly learned this ultimate skill!
This is sheer rebellion, akin to insubordination!
If the great three Demon Lords learn of it, Mo Lin is likely to be sentenced to the ultimate punishment!
And the Demon Lord, knowing the power of the Heavenly Demon Evil Kill, stopped his fleeing posture.
