Nui Harime is a major antagonist in the anime series Kill la Kill. She serves as the Grand Couturier of the Revocs Corporation and works directly under Ragyo Kiryuin. Known for her playful, eccentric, and sadistic personality, Nui possesses immense combat skills and is responsible for many key events in the story, including the murder of Ryuko Matoi's father. Her ability to regenerate and manipulate Life Fibers makes her a formidable foe for the protagonists.