C66 His Strength Increased Rapidly

Buzz!

A surge of immense energy flooded Esaki's body, fortifying his physique. Simultaneously, his skin grew tougher and even began to shimmer with a metallic sheen.

Holding a small knife, Esaki made a cut across his hand.

Hiss!

Not a single white mark appeared on his arm.

He then lifted the knife and thrust it into his palm with force.

Clang!

The blade snapped and was sent flying