Well I'm not surprised, it was too easy to find her little sister, I'm starting to wonder, all girls will become crazy eventually?
Eh, Rii had shown signs of being unstable much earlier
== I'm the only one that feels that those girls on ch 37 are cannibals? The way those two guys didn't want to mess with them...==
Well, there's almost certainly something wrong there. Cannibalism seems like it'd be ineffective in the setting, though
I have to wonder though, how people reacted to this manga when they first read it without knowing anything about it's zombie setting. :P
Speaking for myself, it was something like "Ohhh, this is interesting~"