I remember seeing people having guesses about her reviving a second Kurono, 3-4 months ago (although not on here). That was a pretty nice development IMO, really liked it.
I don't think Nishi was aware of this, when he said 'Alright, it starts', I'm sure he was referring to the Katastrophe. It was the 'last' mission before it actually starting.
I don't believe Reika expected seeing Gantz out of his ball, she looked too baffled. Surprised in a "whoa, what's happening" way, not a "I can't believe what I was told is true" (if it was a plan of hers through something else) way.
She was about to revive Suzuki, the gramps, but had a change of heart, and took the opportunity of being alone to revive a second Kurono for herself. It's not the gramps suddenly being young again, how was figuring that out hard?
The mangaka continues to be serious about this manga, that's it. And I'm damn glad for that.
Great chapter although no action. If 'this' gets find out, the real Kurono will obviously be pissed, which could lead to some teamwork problems, but I'm waiting for the next chapter.
Since Oku doesn't restrict himself in the more NSFW department, I won't be surprised seeing Reika 'enjoying herself' with the new Kurono, since she gave up on the real one.
Edit: I'd lol so much if the Kurono-clone ends up not liking Reika because he still has memories of Tae. Seeing Reika going higurashi/elfen lied/school days on him would make Oku even crazier; it'd be fitting for the next arc being 'Katastrophe'.
Also interested in seeing what Nishi will be up to. You know, new weapon and all; going back to high school to kick ass? Last time he was seen in the real world (in gantz ofc) was in his school with the cops. They saw him disappear. His school would surely be closed for maintenance/drama at least 1 day, so I wonder if he'll go pay it a visit once it re-opens.