The assassin targeting Kae has finally been revealed. Because of their previous clashes, Kawaki knows they are a powerful foe. He decides to chase after the assassin by himself to prevent putting any more students in danger. But Kawaki finds it difficult to do that without knowing where the assassin is; what’s more, his classmates desire to work together to chase down the assassin and save Kae. And so, the entire class begins their pursuit!
She's outlived her usefulness,
so I sealed her inside.
.لقد عاشت أكثر من فائدتها، لذا حبستها في الداخل
Sie hat ihren Nutzen erfüllt,
also habe ich sie versiegelt.
La encerré en mi interior
porque ya no la necesito.
La encerré en mi interior
porque ya no la necesito.
Ma l'ho sigillata dentro di me 
perché aveva esaurito il suo scopo.
Ela deixou de ser útil,
então a selei dentro de mim.
А так как проку от неё теперь нет, 
я её запечатала.