Chapter 815 Admitting Defeat

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, followed immediately by an incomparably huge whirlpool.

The rotation of the whirlpool was picking up on speed, and its scale was increasing in size as well.

All of a sudden, the seawater on the edge of the whirlpool shot up to the sky and formed a net. Then, the water fell back down and it became peaceful again.

"The scene is already strong enough, but I don't know how powerful it is. I feel that there's something missing."

"The Thunder Sea must b