Oboro, the beautiful young princess of Iga Tsubagakure, was selected to be one of ten ninja to represent her clan against the ten chosen fighters of the rival Koga Manjidani clan.
Born with 'Mystic Eyes,' Oboro has the power to neutralize the techniques of any ninja that meets her gaze directly. After the death of her grandmother Ogen, Oboro ascends to take leadership of the clan, but due to her passive demeanor soon finds her authority usurped by Yakushiji Tenzen. Among the Iga, Princess Oboro is something of an oddity. Sweet natured with a gentle disposition, Oboro lacks any real talent for either martial arts or ninjutsu and is also a bit of a klutz. This, along with her love for Gennosuke of the rival Koga clan has caused most of Iga to view Oboro as something of a black sheep, a fact she is painfully aware of. When the Hattori truce is lifted, the other Iga ten are quick to take advantage of Oboro's feelings for Gennosuke, tricking her into inviting him and Udono Jousuke into their compound where the Iga can keep them under surveillance. Although hurt and betrayed by their actions, Oboro remains loyal to her clan and is greatly torn between her duty and her feelings when the truth of the renewed conflict is finally revealed to her. Ultimately, she makes the decision to temporarily seal her eyes shut with a potion given to her by Ogen called the Seven Days of Darkness, knowing that if she saw any of her clansmen attacking Gennosuke, she might be tempted to use her powers against them instead. Prior to the lifting of the Hattori truce, Oboro was engaged to Kouga Gennosuke in an attempt to bring a lasting peace between both clans. The two had known each other since childhood and were anxious to spend their lives with each other. In the anime, Oboro would frequently meet with Gennosuke along their clan's borders to practice a Japanese fan dance which they planned to perform for the guests at their wedding.