After the "Another" incidents which sent Den City into a panic, one of the masterminds behind the plot, Baila, one of Hanoi's Three Knights, was sent to a detention facility and imprisoned. There, while under strict surveillance, she is visited by a certain man...
But before that, there's 
one thing we must do.
Eines bleibt uns jedoch zuvor noch zu tun.
Antes tenemos que hacer otra cosa.
Mas antes disso, tem uma
coisa que precisamos fazer.