When Yoshino's reservations towards Mayu's resistance to talking about her past with I-1 boils over and a dark cloud hangs over the group, WUG takes a trip at Kaya's suggestion.
In other words, 
you're a piece of subhuman trash.
In anderen Worten, 
bist du ein Stück unmenschlichen Abfalls.
En otras palabras, solo serás 
basura inferior a un humano.
En otras palabras, solo serás 
basura inferior a un humano.
Comme vous avez renoncé
à être humaines,
In altre parole, diventate la feccia dell'umanità.
Ou seja, não passam de um lixo sub-humano.