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Lang mugshot

Shi-Long Lang.

Lang (also known as the House of Lang) is a family name that may refer to the following individuals from Zheng Fa:

  • Lang Zi - a philosopher from Zheng Fa who was known for his "philosophy of detainment" and his many sayings.
  • Dai-Long Lang - a well-known detective in Zheng Fa who was the former head of the family and the father of Shi-Long Lang. Died after failing to solve the SS-5 Incident.


  • The family name in the Japanese version is "Rou", which roughly means "wolf".
  • "Lang" comes from a Chinese reading of the kanji that make up his Japanese name, and means "wolf".

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