Natsume: "You think you can challenge me? that would be cute if if wasn't so pathetic." Kira: "I liked her better when she were sneering..."
Natsume, daughter of a dragon queen and Kira's rival, has quite the personality. It's alright, it's probably just your peasant intellect rendering you incapable of realizing her greatness. Naturally a princess's time is far too valuable otherwise she'd gladly explain how the world works to you.