Ken Ichinose

Delinquent girl boss meets and conflicts with an orphan girl who lives an isolated life after the dramatic deaths of her parents. She plays the piano, but stands up against her lecherous guardian, who is also a school official.

Miko Sugimoto is the leader of the Red Helmet Gang, a biker girl gang from Shinjuku who wind up in Kyoto and make a bid to take over the local girl gangs there. Successful for a short time in ruling the streets it isn't long before Miko and her crew run afoul of the local Yakuza, and are forced to turn to Reiko Ike, a ronin Yakuza girl, and sister to one of the top Yakuza in Kyoto, for help, leading to a murderous showdown at a small coastal resort.