Kichou, daughter of Saitō Dōsan from Mino Province, serves as Nobunaga Oda’s legal wife through a political marriage securing the Oda-Saitō alliance. Rigorous shinobi training under her father left her scarred from dangerous missions, shaping her self-perception as "damaged." Her androgynous appearance, including a notably flat chest, fuels personal insecurity and external gender speculation. The narrative maintains ambiguity through visual cues like chest-binding and hair-cutting, though historical records identify her as female.

Her father deployed her as a spy against Nobunaga, including a failed assassination attempt during their first encounter when Nobunaga saved her after a gun misfire injured her chest. As Nobunaga’s wife, she wrestles with divided loyalties between her father and her husband. Observing Nobunaga’s leadership and experiencing his unexpected kindness, she gradually diverges from her father’s manipulation.

Kichou believes herself infertile, deepening her inferiority complex and sense of inadequacy as a wife. Despite this, she demonstrates combat proficiency by protecting Nobunaga in multiple instances—engaging in a ninja fight and undertaking a perilous solo mission against antagonists. Her journey reflects a transition from political instrument to autonomous individual, culminating in her rejection of her father’s control. Historically, she remained with Nobunaga until his death in 1582, with no biological children.

She possesses ochre hair and golden eyes. Her attire evolves from traditional feminine garments to practical gender-neutral clothing, especially after cutting her hair short, reinforcing the narrative’s visual ambiguity.