Yubesho rats, a species of rat, inhabited the lunar landscape of Toshara's moon. These creatures, primarily subterranean in nature, exhibited significant blindness. However, they possessed an extraordinarily developed olfactory sense, enabling them to locate sustenance from remarkable distances, and were notorious for their ability to gnaw through both wooden and metallic barriers to reach their desired food source. Regarded as vermin, their numbers in the city of Mirogana were estimated to be at least an order of magnitude greater than the sentient population.