But this is ep. 7 out of 13 with 2 additonal DVD only episodes. They can't play with us for too much longer and have a real resolution. Pretty soon they have to answer those questions and fill in the plot holes to get to a resolution by the end of the TV run. This should be the last episode to mess with our heads imo.
@Skane
Spoiler:
To make Aono happy: Walk toward the light Aono!
Advice for Yorito: Kill 'neesan. Hatchets and baseball bats are good weapons. Tazers are also good.
Thanks Kaoru Chujo for the info.