Prince Nanami Kento, the emperor's only son, is 28 years old. He is tall and well-built with striking blonde hair. Having participated in numerous wars, Nanami has spent much of his life isolated, which led to misguided gossip painting him as cruel and cold. Contrary to these rumors, he is actually kind-hearted, wise, and protective, maintaining a stoic demeanor. Yet he doesn't trust people enough to show them his true self.