C536 It Was a Shocking Unique Medical Beast Technique

Bu Erwo's cheeks flushed with embarrassment upon hearing Zhang Xing's rebuke. He hung his head in shame, at a loss for words to defend himself. Internally, he grumbled with frustration.

"How was I supposed to know what a Class 6 Magical Beast's advancement looks like? I'm a physician, for crying out loud!"

"Besides, every Family's Demonic Beast undergoes its advancement with extreme caution