Ship? Sheesh, these two are pretty much iconical lesbian couple. I honestly can't believe that first VN of this series was released as late as 2006. They've made a ton of them between back then and 2016.
There are also a bunch of light novels that I've not read. I think that all yuri franchises could use the amount of development that has gone into Sono Hanabira.
@ckretaznmayden: Yes, it's pretty obvious she's talking about Ryza herself. But still, don't expect anything from it or the sequels, Ryza was extremely light on yuri or relationship teases in general, at most there was a little bit of Bos X Kilo (two NPCs). Arland it ain't.