Oboro was born into the prestigious Iga Tsubagakure clan, raised under the strict leadership of her grandmother, Ogen. Unlike most Iga warriors, who were trained from childhood to become ruthless assassins, Oboro was shielded from violence, growing up as a kind and gentle soul. This sheltered upbringing made her soft-hearted and naive, unprepared for the bloodshed and cruelty that defined the war between the Iga and Kōga clans.

Her engagement to Gennosuke Kōga was intended to end the long-standing conflict, symbolizing a new era of peace between their factions. However, this dream was shattered when the Tokugawa shogunate reinstated the Kōga-Iga war, forcing her to fight against the man she loves.

When her grandmother Ogen dies, Oboro is declared the new leader of the Iga, but her gentle nature prevents her from ruling effectively. Tenzen Yakushiji, a ruthless and power-hungry warrior, quickly seizes control of the clan, reducing Oboro to a mere figurehead. Though she remains loyal to her people, she is powerless to stop the violence, making her one of the most tragic victims of the renewed war.

Oboro is a delicate and beautiful young woman, with long, flowing black hair, large expressive eyes, and a graceful, elegant demeanor. Her soft facial features and gentle expressions highlight her kind-hearted nature, making her stand out from the hardened warriors around her.

She typically wears a traditional white kimono with light blue or purple accents, emphasizing her noble status as the princess of the Iga clan. Unlike the warriors of her clan, who are often scarred and battle-worn, Oboro maintains a pure and untainted appearance, reflecting her innocence and aversion to violence.

Oboro is gentle, kind, and deeply compassionate, making her an anomaly among the ruthless and battle-hardened Iga ninja. She abhors violence, believing that hatred and revenge only lead to more suffering. Unlike her comrades, who embrace the blood feud with the Kōga, Oboro desperately wishes for peace, seeing no purpose in the endless cycle of revenge.

She is also deeply loyal and self-sacrificing, always putting the well-being of others above herself. This is particularly evident in her love for Gennosuke, as she struggles to reconcile her feelings with her duty to her clan. Despite being thrust into a war she never wanted, she never succumbs to hatred, proving that her heart remains pure even in the darkest times.

However, her passivity and lack of assertiveness make her ill-suited for leadership, leading to her authority being stripped away by Tenzen Yakushiji. Though she desires to protect her people, she is too gentle to command them, making her a tragic figure who is unable to stop the war she despises.

• The Engagement to Gennosuke Kōga
  Oboro’s engagement to Gennosuke Kōga was meant to unite their clans and bring peace, representing hope for a future without war. However, this dream is destroyed when the shogunate nullifies their treaty, plunging the Iga and Kōga back into a brutal fight to the death.

• Stripped of Leadership
  After Ogen’s death, Oboro is named the leader of the Iga, but her gentle and passive nature makes her unfit for command. Tenzen Yakushiji, a merciless and power-hungry warrior, takes control of the clan, reducing Oboro to a mere figurehead. Despite her title, she is powerless to influence the war, forced to watch as her people commit atrocities in her name.

• Struggling with Her Love for Gennosuke
  Though she is expected to fight against the Kōga, Oboro cannot bring herself to harm Gennosuke, even when she has the opportunity to kill him. Her love for him never wavers, making her one of the most tragic characters in the series, as she is forced to fight a battle she never wanted.

• The Tragic Conclusion
  As the war progresses, Oboro is one of the last surviving Iga warriors, with only her and Gennosuke remaining. In the final heartbreaking moment of the series, she makes a devastating choice that seals both their fates, proving that her love for Gennosuke transcends even death.