Princess Sara

The daughter of the feudal warlord Oda Nobunaga, Princess Sara is a talented ninja, but is considered an enemy by many ninja clans due to her father's actions and assassins are regularly sent after her. She is attended by a loyal retainer, Rikimaru, who is also a ninja. It is revealed that Sara climbs three mountains every day to stay fit. She once faked a marriage to Shimo-no-Hanzō to save Iga from an attack by her father and remains an ally of the ninja of Iga. Though she despises Kami-no-Hanzō's flirting, her love for him is so strong that she would rather die than live without him. She becomes pregnant with Kami-no-Hanzō's child. Her daughter Kaguya is eventually born after the attack on Iga and was delivered with Usagi's help. (Source: Wikipedia)