Ni

is an antagonist from Naruto Shippūden 3: Inheritors of the Will of Fire. She is a kunoichi and one of Hiruko's three followers, along with Ichi and San.

Appearance
She has two purple stripes on her left cheek, a bodysuit that reveals much, and long brown hair curled into a very intricate spiral. She has a mark on her back that is the same as the one in Hiruko's left palm.

Abilities
She can summon multiple dog-like creatures that have been modified with cable projectiles on their back. She can also summon another creature and merge with it using the Chimera Technique. The new creature breathe fire, but is slow due to its large size, leaving it vulnerable to faster opponents. Ni wields a whip which she can use proficiently at close range.

Plot overview
She and her partners were ordered to meet Kakashi and kill anyone who tries to stop them. She ends up in a battle with Team Kurenai, and is defeated when she falls into a trap where Shino uses his bugs to suck her chakra. She is summoned by San, who merges with her and Ichi to create a chimera beast. It fights the Konoha 11 without Naruto and Sakura until it is restrained, and once again summoned, this time by Hiruko. After that, it fights the Konoha 11, who defeat it this time.

Trivia

 * means "two"; likewise, her partner's names mean "one" and "three".