One of the next generation of "princesses", along with Tomoe Izumi. Because of his home circumstances, has somewhat of a complex about being poor. His older brother works as a host to support the family, which includes Kiriya and his younger sister, Kaede. Frequently feels inferior to Tomoe, who is rich, especially when Tomoe seems to flaunt his wealth. This makes Kiriya angry, and want to shun the friendship of Tomoe.