Chapter 99: Purple-Gold Lightning Appeared, Advancing to [Lord of the Lake]

Inside Ye Feng's body.

Rumble!

Suddenly, a wave of thunder sounded from within his body, from the inside out. The origin energy actually continued to churn, as if it was being pulled by some kind of force, surging outwards. This caused Ye Feng's face to be filled with joy.

"Haha! Looks like I'm going to advance! This time, I should be able to break through to D+ grade!" Ye Feng was ecstatic.

In the symbiotic level system, C grade and D grade were a dividing line. It was also a very crucial stage to step into the ranks of the strong. Therefore, every symbiote hoped that they could break through within the perfect D+ grade state.

Only after breaking through to this stage could they truly step into the ranks of the strong.

Suddenly, Ye Feng felt a surge within his body. A ball of light blue air began to revolve. This aura became faster and faster, becoming more and more urgent. It even emitted a humming vibration sound.