In a world ruled by bushy-tailed, bipedal catfolk, "humans" are mythical beings worshipped as gods. Those who pass a human's trial will have their wish granted... or so the legends say. In the bountiful nation of Nyamato, nature has reclaimed the ancient ruins that lay scattered around. With Princess Tama soon to be wed to her cousin Kotarou, the two announce their union to the gods as part of a traditional marriage ritual. But at that exact moment, in a flash of blinding light, a young man appears--with no visible ears or tail, precisely as humans are described in the old legends. And just a few days after his advent, an Impurrial ship docks at the harbor. With both nations eager to lay claim to the human for their own purposes, the once-peaceful Nyamato is confronted with an arduous trial to overcome. Be it for her country or her heart, what will Tama choose?