Uo Uzumaki is the eldest of the female jonin pair that act as the leaders of the 'Neo Uzumaki', uzumaki created via the yin yang release technique. She is well known as an incredibly powerful swordsman, known for her skills with multiple swords that she carries with her. She is also known for her skill with the Spirit Sword Technique, a jutsu derrived from the samurai's chakra flow technique that they use for their swords.