Yujiro views himself as a living god. He looks at ordinary humans as though they are insects and considers mercy a weakness. He is fully aware that he is the most powerful being on the planet and firmly believes that everything should be commanded or obtained through pure, unrivaled strength. Despite being highly intelligent and cultured when he wants to be, Yujiro's absolute power means he acts on every impulse—often resembling a spoiled child who throws temper tantrums when things don't go his way. He has a low tolerance for boredom and will instigate chaos simply to satisfy his whims. Yujiro has zero empathy and no true sense of morality. He has committed countless atrocities. He is essentially an "evil force of nature," taking sadistic pleasure in dominating, humiliating, and sometimes even killing those who stand in his way or who boast about strength they do not truly possess. Yujiro rejects all modern weaponry, viewing his own body as the ultimate instrument of destruction. Interestingly, he generally does not target the truly weak, but rather focuses his wrath on warriors, self-proclaimed masters, and organizations (like the U.S. military) that assume they hold dominance over others. Though he is ruthlessly aggressive, Yujiro is surprisingly patient. He is stoic, usually listening silently and only speaking when necessary. Over the course of the series, he has even mellowed out somewhat, transitioning from a random destroyer of innocent dojos into a slightly more calculating figure who reserves his violence for legendary fighters or formidable creatures.