So the opening is a conceptual out look that coincides to the previous events, to give an outlook from the perspective of the "enemy" and the mortal witness of what has occurred thus far. In my secondary, in which I will spin out today, will give a character conception that introduces the next series of events. But it's pretty basic; at the border of GZ and all that, refer to the Arc section located within the table of contents if you need to refresh on what's happening as of right now.