Sukeban Deka(1976)

Sukeban Deka

Sukeban Deka centers on Saki Asamiya, a high school delinquent who strikes a deal with the police to investigate her former high school and bust illegal gang activities, in exchange for her mother's pardon. Armed with her metal yo-yo, she fights the Mizuchi sisters, who de facto control the school.

(Source: Anime News Network)