I am not usually a fan of manga that go on without real progression, but I believe that while progression in the majority of the cast was not evident, Iori/Shiori's growth as a character was. They were still vocal about wanting to be a guy, but they also learned to accept more of their female side, even spending an entire day as a girl without realizing it or seeming bothered. In the end, I liked Sylphie's proposed idea of Shiori and Shuu ending up together with a kid, particularly if they didn't try to hide the nature of who Shiori used to be. It opens a good dialogue for gender identity with their kid, which is healthier for society overall, IMO. I personally consider that the canon ending, and treat the additional material picture of Iori and Miyu to be just that- bonus material, non-canonical fluff. Not sure if that was the mangaka's intent, but, that's my take ^^ Overall a great read. Highly recommended! Keeping this one around to re-read favorite chapters and scenes again!