Komori is a middle-aged man who’s made to feel like a nobody both at home and at work. When he’s falsely accused of molesting a woman during his morning commute, his rage at the habitual accuser causes him to snap and he pushes the her off the subway platform to her death. Feeling exhilarated by what he sees as justice, his life suddenly takes a turn from the better and he becomes more confident. Soon, his ego grows exponentially and he becomes a guru for other justice-seeking vigilantes who form the “Komori Life-improvement Club”.