Kiyotaka Ishimaru is nine years old and very intelligent. He has red eyes, dark raven hair in the style of a crewcut, and wears formal yet childish clothing. He lives alone with his dad, Takaaki Ishimaru and no mother. He is a very stern and curious kid who always wants to learn something no matter the moment. He has a very hard time making friends and is often seen as “weird” to other kids. He likes to practice sword fighting.