C209 External pill of heavenly law

"In the Immortal Realm, all the strongest practitioners use this method of cultivating the Way of the Golden Core! However, Gu Tianmo, I have always felt that you understand everything, that there is basically nothing that you don't know, that you actually don't even know these things. " Chang Sheng deeply despised Gu Tianmo.

Gu Tianmo heard Chang Sheng's disdain, and could not help but retort