C3757 Let's Spar

"Did I really do that?"

At the same time, Sun Bing's face was filled with shock and disbelief as he looked at the crack in the sky.

Just as he was feeling extremely confused, bits and pieces of information flowed into his mind. After that, Sun Bing knew that this Sky Book was born to split open the sky.

Therefore, only when the sky was split open could its power be maximized