@Arashi89
1) 99% it's Byakuya
2) I guess it was just for comedy. This 0-squad lady, is fashion designer.. maybe little weird..so that's why Renji was so 'strange'.
But for fasion designer, seeing naked body is part of job, I guess. So it's normal. Some 'newb' doesnt' understand that[eg. renji].
3) Shinji&Hiyori likes to argue between each other. And remember Hiyori was his subordinate in SS hundred years ago.
The thing that needs to be repaired is this world[forgot the title] between SS and real world. I guess she must do something like Ichigo's father explained, when Ichigo was training..in Dangai. :D
And I don't remember corectly but Mayuri wasn't responsible for creating Hogyoku and Vizards.
The one thing I dont get is what Mayuri's part in that package is. It may be something important.
4) Well, you are right and wrong at the same time. Sure you don't send head capitan to earth leaving SS without Head capitan.
From other side, when you send some 'high' persona it must be very important thing. In the war(SS is in war) you must be 100% sure that message had been sent. So that's why you send Captains.
One question remains: what is so important 2 guys?
"Nothing Important Happened Today". Nothing was explained. He gave us more mysteries/hints:
-mayuri/shinji package
-Kyouraku message
Meh. How someone can love this chapter? I don't even ..
ps. I thought he would say something about being Head Capitan but this one is good too.