As for Tae-chan, I get the opposite feeling: in the end, she'll the the very survivor who lives to tell the tale. Things are just happening with her as I see it as she's good at running away when problem arises (except from Izumi, but that's a special case). But it'll be the "original" Kurono who's going to die. And the same applies to Reika. At least it would be the most ironic way.