Born into the dark corridors of the Matsumoto Yakuza syndicate, Reiko climbed the ranks not by inheritance, but by fire. Sharp-minded, sharp-tongued, and sharper with a blade, she became infamous before she turned twenty-one. Known on the streets as Madame Butterfly, she rules an all-female sukeban gang that blends old-school Japanese delinquent energy with the precision of organized crime. Underneath her elegance lies volatility; behind her smile lies calculation.