 The author uses those monsters to describe the reason of the outbreak of SARS.He is based on the dragon guardian Huang Long, who is the leader of Ssu Ling Gods.The Realm of the Dead, or Hells (地獄 "Diyu") led by King Yanluo (閻羅王), who is based on Yama in Chinese mythology, and is in charge of Ox-Head and Horse-Face, Black and White Impermanence.