Inaho Kaizuka (界塚 伊奈帆, Kaidzuka Inaho?, also spelled as Inaho Kaiduka) is the main protagonist of the ALDNOAH.ZERO television series. Originally a student enrolled at Shinawara academy, he continued to pilot his training Kataphrakt, the KG-6 Sleipnir, throughout the Second Earth-Mars War despite it having a successor; the KG-7 Areion.
As a young teenager he had average height and short tousled black hair. His eyes, with their burgundy irises, gave Inaho his characteristic blank gaze. His high school uniform consists of a white shirt, red tie and white sweater, along with a beige blazer on the outside and dark brown pants.
He has a highly intelligent mind but he struggles with relating to others and expressing himself. After the time skip, he seems to have improved in this area, making polite small talk and observe certain physical details, contrasting with his normal silent behavior. While others often perceive him as lacking emotion, his sister Yuki Kaizuka has stated that he does not openly express them well, but that she can see them.
His emotional detachment, along with his pilo...