Who is kagura in Naruto Shippuden?

Kagura was an original character created for the American-exclusive Naruto: Clash of the Ninja Revolution 2, and returned for its sequel, Naruto Shippuden: Clash of the Ninja Revolution 3. She was a former ANBU member who had wished to become Tsunade's apprentice, and later the Hokage, but went rogue when Tsunade had refused because of Kagura's lack of compassion for her colleagues.