[Machine Translation] A series of slaughters targeting only Chinese nationals occurred. The only clue is a tattoo of "Wuyue Shengshan" left under the armpit of a corpse whose head and limbs have been severed. Sae, a detective at the Shinjuku Police Station, is sent to investigate the dead bodies, and is teamed up with a mysterious Chinese man who calls himself "Mao" as an assistant investigator. Yuki, a beautiful Ministry of Foreign Affairs official who is willing to use her body for information, joins them, and the three try to get to the bottom of the case.