Kita Furo, son of the vanished Kita-Yagyu leader Kita Retsusai, is driven by vengeance against Yagyu Jubei for his father's defeat in the Siberian ice. When Jubei died before Furo could act, he stood poised to challenge Jubei's successor. The emergence of two claimants created confusion, leading to a distracted Furo's swift defeat in their first encounter and subsequent intense training. As one of the Kita-Yagyu's few remaining capable warriors, Furo fights with an impulsive, high-risk style mirroring Freesia Yagyu's own weakness.

He perpetually wears sunglasses, concealing a childhood injury to his right eye. Though this injury persists, his long adaptation—influenced by an early admiration for his former mentor Jubei, before their clans clashed—minimally hinders his combat ability.