Unusual for Zayne

"Don't touch me," Galvin said. His facial expressions were unchanged. 

As the head with the stupid expression stopped rolling on the luxurious bricked pathway, the headless body of Booklet fell to the ground with a faint thud.

Zayne and Corre were both extremely startled. It felt like their breath was taken away for a moment. Their widened eyeballs looked at the headless corpse and the decapitated head in the ground, as they tried to catch their breath. 

That slash happened so fast that if Galvin hit them, they would not be able to dodge. How fast can someone unsheathe his sword to do that? But that was not what they were really shocked, it was how unexpected and coldly executed the killing was. They have not expected this. Both of them who were silver-ranked adventurers took half a step back simply out of fear.