C1521 The Serpent Emperor's Break Through

Watching the sky, the rank 9 serpent emperor kept breaking through the limits of its own strength, stripping off its own flesh and blood. Watching the sky above the sky, the rank 9 serpent emperor kept breaking through the limits of his own strength, stripping off his own flesh and blood.

Even when one's willpower was weak and their mental strength had yet to reach a sufficiently strong state