Chapter 680: Slapped in the Face

Apart from his core blood, Wu Gang also learned many other things.

Like how to increase his speed by a grade in a short time, as well as how to set up simple space arrays.

Overall, the content of the book was quite complex, but each part was very useful.

For someone like Wu Gang, who knew nothing, it was very beneficial.

Qian Zongyun had been sitting cross-legged on a chair for some time now.

No one knew what he was doing.

However, the droplet of blood between his eyebrows became more and more active.

It looked a bit terrifying, as if it were about to mutate.

The drop of blood just floated in mid-air, and Qian Zongyun's hands kept reversing, sending out invisible waves in all directions.

Wu Gang was quite surprised, and with a guarding motion, he blocked the wave in front of him.

"What are you doing, put down your hands quickly!"

Qian Zongyun suddenly said somewhat angrily, "Are you trying to kill me?"

Of course, Wu Gang didn't know what was going on.