Banzo Takemura is one of the four original bandits whose brutal attack on a family sets the cycle of vengeance in motion. Alongside Okono Kitahama, Gishiro Tsukamoto, and Tokuichi Shokei, he participates in the murder of a man and his young son and the subsequent rape of the man's wife, Sayo. This crime marks Takemura as a primary target for the复仇-driven protagonist, Yuki, who is born years later specifically to exact retribution for her mother’s suffering.

In the years following the attack, Takemura's life deteriorates significantly. By the time Yuki, now an adult, begins her hunt, he is no longer the dangerous bandit of the past but a broken and sickly man. He has become an alcoholic con man, drowning in gambling debts and living in poverty with his young daughter, Kobue. His defining personality traits are those of a coward. He is quick to beg for his life and attempt to shift the blame for his past actions onto his former accomplices. In particularly desperate moments, he shows a willingness to exploit his own daughter, offering her to others to escape dangerous situations, which marks him as a dishonorable figure. However, he is not without a sense of familial attachment. He genuinely loves Kobue, and a key moment in his final hours is the horrified realization that she has been selling her body to pay for his medicine and debts, a discovery that briefly shocks him out of his self-pity.

Takemura’s primary role in the story is as the first of the three surviving bandits to be confronted and killed by Yuki. He serves to establish the moral complexity of her mission of vengeance. Unlike the more calculating mastermind Okono or the hidden Tsukamoto, Takemura is pathetic and has already punished himself through his own dissipation, which raises questions about the nature of justice as Yuki prepares to execute him. His most significant relationship is with his daughter, Kobue. Her devotion to him, despite his failings, humanizes Takemura and creates a parallel to Yuki’s own story of a child acting on behalf of a parent. The encounter between Yuki and Kobue, including a gift of a hairpin, adds a layer of tragedy to Takemura’s death, as Yuki ultimately spares Kobue from a life of prostitution even as she kills her father.

The character undergoes little personal development in the sense of redemption, but his circumstances reveal a stark decline from his criminal youth. When confronted on a beach by Yuki, he does not fight but immediately falls to his knees and begs for forgiveness, claiming he was forced to commit the crimes by the others. This cowardly plea is his final act, and it fails to move Yuki, who kills him by slicing his chest and sends his body into the sea. Notably, Takemura possesses no remarkable combat abilities or strategic mind. He is presented as a gambler and a cheat but has no significant martial skills to defend himself against Yuki’s sword. His most notable ability, if it can be called that, is his skill at cheating in card games, which ultimately leads to his discovery and near-death at the hands of other gamblers before Yuki intervenes to claim the kill for herself.