Kotohime

is a woman from the Fūma clan who sided with Orochimaru alongside Arashi, Jigumo, Kagerō, and Kamikiri when the clan fell on hard times. Orochimaru taught her how to play a koto.

Abilities
She also demonstrated an ability to extend her hair around an opponent.

Land of Rice Fields Arc
She seduced Jiraiya in Orochimaru's lair, telling him that she was Orochimaru's mistress, and lured him to a room where both of them will be crushed by the ceiling. Jiraiya managed to prevent that and she is currently living with Hanzaki and Sasame.

Trivia

 * Kotohime bears a remarkable resemblance to Kin Tsuchi and they also have similar scarfs.
 * Jiraiya's struggle with Kotohime is not seen onscreen.
 * Kotohime means "Koto Princess" or "Princess of the Koto". A koto is a Japanese stringed instrument.