Nibiiro no Chameleon

During the Japanese asset price bubble, the country was gripped by a frenzied atmosphere where strength consistently prevailed over weakness. Amidst this chaos, a figure emerged with the goal of avenging a past injustice. However, this individual's true nature holds a surprising twist: they are a male who disguises himself as a woman. Furthermore, this individual is not only driven by a desire for revenge but also possesses a cold, calculating demeanor, making them a formidable and ruthless killer.