A hulking internal-style martial arts expert disguised as a doctor in the infirmary. He wore a mask and maintained unnaturally neat and clean clothes despite the chaotic environment, unlike other doctors who were sweaty and stained. He carried a syringe filled with a large-dose poison intended to target Katu. Zhao Wuming identified him through careful observation, grabbed his syringe, and injected him with his own poison, causing him to collapse and die with white foam seeping from his mask.
