From the back cover:
The first shinzahou treasure from the northern country of Hokkan was stolen from Miaka, and the only treasure left is in the western country of Sairou—and both Miaka and her friend-turned-mortal-enemy Yui are intent on getting the treasure for themselves! But Sairou isn’t a frozen wasteland of forgotten dreams and ghosts like Hokkan. It’s a vibrant, living desert country, whose inhabitants are veterans of the last clash between priestesses and gods!
Flaws in this volume are few. Aside from a very annoying response to some breakup angst (wondering if she’d done something that made Tamahome hate her), Miaka isn’t too annoying. Another person is added to the tally of those who’ve glimpsed her rack, however. Oh, and there are panty shots, too.
The good stuff includes dramatic losses on both sides, touching bonding between Tasuki and Chiriko, progress on the summoning front, and the appearance of three celestial warriors of Byakko. The love story of Suzuno and Tatara parallels that of Miaka and Tamahome and actually makes the latest breakup angst between the latter pair have some impact. I totally want Byakko Kaiden now.