C538 Forced to Cripple One's Own Cultivation

Instantly, the expressions of Bai Yuangang and Koo Bao darkened.

Murong Yu's decision was too overbearing. Crippling their cultivation or dying, that was taking their lives.

"Friend, aren't you going too far?" Koo Bao looked gloomily at Murong Yu: "Since you've killed so many of my Gu family's disciples, our Gu family will not bother with you. Moreover, you've yet to make a move