At night, Zhang Han once again developed the secret skill Thunder Sea in his mind.

This was Zhang Han's recent daily evolution. The great power of the secret skill had to be constantly improved.

The last time he displayed it, the magnitude of its power was not strong enough. It should have been called a Sound of Thunder Storm, as it did not have the scene of a sea.

After Zhang Han's constant improvement and evolution, he saw a vast ocean in his mind, ...