Shi-Long Lang is an elite investigator who has the highest successful arrest rate out of all Interpol agents. He was known for mass investigation tactics using a large team of 100 subordinates. 

Lang has wolf-like mannerisms; he bares his teeth when upset, and he refers to his subordinates as his "pack". His hairstyle is also somewhat suggestive of a wolf's ears. Lang even howls occasionally when cornered in a bad situation or made an absolute fool in public.