Princess Sara, the offspring of warlord Oda Nobunaga, possesses exceptional ninja abilities but faces animosity from many ninja clans owing to her father's actions. Attending to her is Rikimaru, a loyal retainer and fellow ninja. Daily, Sara scales three mountains in pursuit of fitness. In an attempt to safeguard Iga from her father's aggression, she once feigned marriage with Shimo-no-Hanzō. Despite disapproving of Kami-no-Hanzō's flirtatious behavior, Sara's profound affection for him is unwavering. If compelled to choose between life and love, she would opt for the latter. Eventually, after an attack on Iga, Sara gave birth to her daughter, Kaguya, with Usagi's aid.