A extremely cunning male serial killer who abducted, raped, and murdered nearly fifty young girls over many years. He dismembered bodies with an axe and returned remains to families in cloth bags. After being discovered, he fled and lived in disguise as an old hunter named Lao Zhang in the mountains for ten years without committing further crimes. He captured Shen Fu by knocking her out and dislocating her joints. He kept Ruyi alive because she was a prisoner in exile with no hope of escape.
