An invisible Willwear is causing massive damage in random attacks across Tokyo.  Unit 8 tracks the Willwear down to the quagmire zone, a hotbed of illegal immigrant activity.  The area is a lawless zone, so Sena is sent to infiltrate as a civilian garbage collector.  There, he meets an illegal immigrant from a equatorial nation, who he suspects of being involved in the attacks.  When he strikes up a friendship with the man, however, he's forced to choose between his personal feelings of respect, and his duty.
But many immigrants, both 
legal and illegal, moved in
لكنّ المجاهرين الشّرعيّين وغير الشّرعيّين
allerdings haben sich hier bereits allerhand
illegale- und legale Immigranten niedergelassen,
e inoltre molti immigrati, sia clandestini che non,
si sono insediati qui
Muitos imigrantes, ilegais ou
 não, acabaram se mudando