Kaiduka inaho

he protagonist appearing in the anime Aldnoah.Zero. A high school student attending Shin-Ashihara High School on Earth. After losing his parents in the Heaven’s Fall incident, he has been living with his older sister, Kaizuka Yuki.

He is highly knowledgeable and calm, with excellent academic performance, yet he never shows it off and usually lives at his own extremely relaxed pace. Even in emergencies, he never panics, carefully assesses situations, and derives the optimal course of action according to the circumstances.