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...
And they didn't know about 
the gate's existence.
Und sie schienen nichts
von dem Gate zu wissen.
pero no conocían nada sobre esa puerta.
E eles não sabiam da existência do portão.