C2271 Unparalleled Saber Dao will

With the Cosmic Bag in his hand, Cheng Feng descended from the crack on the sword.

He sat on the Flood Dragon's carriage and began to study it carefully.

"Uncle Nalan, it's not easy."

After researching for a long time, Cheng Feng finally got nothing.

He realized that the Cosmic Bag was simply unable to open it, and could not be activated to use it