Uki Higashidani

Uki is energetic, outspoken and protective. Her temperament resembles Sanosuke's in its directness, and she is willing to confront people she considers threatening rather than quietly tolerate intimidation.

Her protectiveness toward Outa is particularly strong. Their mother's illness and Sanosuke's earlier departure leave Uki fearful of losing another family member, leading her to shelter Outa more than is necessarily healthy for him.

Although Sanosuke's absence has shaped the family, Uki is not defined by sentimental longing for a brother she barely knows. Their eventual interaction therefore develops through their similar personalities before the full weight of their family connection is addressed.

Uki is not presented as a formally trained martial artist. She is nevertheless physically active, strong-willed and accustomed to the demands of rural life.

Unlike Sanosuke and Kamishimoemon, whose ability to fight is central to their conflicts with local criminals, Uki's role is primarily within the household and village. Her courage is demonstrated through her willingness to resist intimidation rather than through named combat techniques.

Uki appears when Sanosuke returns to Shinshū while traveling after leaving Tokyo. He discovers that his family has continued living there and that Kamishimoemon has become the principal obstacle preventing the yakuza boss Fudousawa from controlling the area.

Sanosuke spends time around the Higashidani household without immediately revealing himself. Through Uki and Outa, he sees the family life that continued during the decade he spent away from home.

The confrontation with Fudousawa eventually draws Sanosuke into defending the village. His intervention allows him to protect his family without simply returning permanently to the life he left behind, while Outa becomes more willing to stand up for himself after learning about his older brother.

Sanosuke Sagara is Uki's older brother. He left home approximately ten years before returning to Shinshū, so much of their relationship is shaped by the long separation.

Kamishimoemon Higashidani is Uki's father. Both are strong-willed, and Uki shares some of the blunt energy seen in both her father and Sanosuke.

Outa Higashidani is Uki's younger brother. She is extremely protective of him after experiencing earlier losses within the family.

Naname Higashidani is Uki's mother. Her death from illness after Outa's birth contributes to Uki becoming unusually protective of her younger brother.

Fudousawa threatens the Higashidani family's village and places pressure on Kamishimoemon because he refuses to submit to the yakuza's control.