True love, and true betrayal

During Yamato’s visit to the foreign country of Kyokoku, two young Autumns are caught in the chaos of a major attack. But their fellow gods refuse to sit around and let such needless violence play out, so the Four Seasons of Yamato and Kashu join the international fray. As the true source of this evil becomes clearer, Nadeshiko’s Guard, Rindo Azami, presses onward through the battlefield to rescue his lady. Where will the story of her love—and her sin—bring this lonely goddess?