He is the Mist Hashira, he uses Mist Breathing, he is a prodigy, he became the youngest Hashira at age fourteen. He is forgetful, cold, arrogant, uncaring, indifferent, and impassive. His mind wander off in thought and works on logic alone, ignoring emotion. He has amnesia due to a traumatic experience he had with his twin brother Yuichiro, in which his twin brother got killed by a demon. He has no recollection of his past. His favorite food is Furofuki Daikon.