This one is different from the CSR Missing Mail. It focus more on Nina's point of view/story rather than Layfon.
NIHO was doing it (Nihonomaru) but they seem to have droped. Its good and funny so here is the suggestion
there're 3 chapters here http://www.onemanga.com/Chrome_Shelled_Regios/

Judging from the first three chapters, it seems like it's going to be heavily episodic. Not that there's anything wrong with that, but it looks like it'll be a weaker series than Missing Mail.

And also, everyone here hates Nina because she isn't Felli.

As you can see from the contents page, there are only those three chapters to the first volume and a second volume hasn't been released yet. At least there are no raws. I would bet that AQS would gladly do the next volume if/when v02 comes out.

oh man sorry, I thought I read in baka-updates it was 3 volumes already... sorry again.
Anyway why so much hatred for Nina? :3 I like her, as much as I like Felli ;P

we dont hate nina we just dont like her for leyton