This individual appears to be someone who goes through life without any particular direction or purpose. He doesn't have a strong bond with his sister, likely due to unspecified reasons. Kirio has two friends at school, Noru and Tastua. Despite being somewhat distant, he cares about them deeply. His sense of justice is quite skewed, as seen when he attempted to harm the older boys who had hurt Tatsuta. He piloted Q-Ko in battle.