Kaoru Shiba (志葉 薫 Shiba Kaoru) is the true 18th head of the Shiba clan, a position that Takeru was holding in her place. She is referred to by her vassals and servants as Princess (姫, Hime). As the head of the Shiba House, Kaoru is the one who possesses the knowledge of the Sealing Character (封印の文字, Fūin no Moji) also known as the Gedou Seal (外道封印, Gedō Fūin), a Modikara passed along the Shiba bloodline (the seal is composed of the kanji for Mon 門, "Gate", A 亞, "Sub-", Ken 剣, "Sword", and Honō 炎, "Flame"). Because of this, she stayed in hiding while Takeru acted as her kagemusha to draw the Gedoushu away from her. When she grows tired of living in hiding, she masters the Sealing Character to defeat the Gedoushu and assumes her birthright. Even though she is kind and easy to work with, she underestimates the vassals' dedication to Takeru, and when she is injured in attempting to use the Sealing Character, she adopts Takeru and gives up her birthright to allow Takeru to lead the Shinkengers in defeating Doukoku.
She makes another appearance in Tensou Sentai Goseiger vs. Shinkenger: Epic on Ginmaku, combining her Mojikara with Alata's Gosei Power to create the Kaentornado card, which is used to free Takeru from his Gedou Shinken Red form, and allow all the Shinkengers to utilise the Super Shinkenger form.
Like Takeru, Kaoru is the Samurai of Fire and has the ability to become Shinken Red, or Princess Shinken Red (姫シンケンレッド, Hime Shinken Reddo), and use the Inromaru to transform into Super Shinken Red.
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