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.
都心で突然事故や器物破損が起きる、見えない通り魔事件が頻発。現場に残された手掛かりを頼りに泥濘地区へやって来た瀬名は、難民らしき外国人アティンと知り合う。
Un Willwear invisibile provoca danni ingenti in varie zone di Tokyo. L'Ottava Unità riconduce quel Willwear alla zona delle sabbie mobili, che è un ricettacolo di attività condotte da immigrati clandestini. Quell'area non è sotto alcuna legge, così Sena viene incaricato di infiltrarsi lì come operatore ecologico privato.
Sena fait la connaissance d'un ressortissant de Carupanuba. La Huitième se penche sur une affaire de multiples attentats perpétrés par un Willware invisible…