Try as he might, Takemichi Hanagaki can't change his beloved Hinata Tachibana's tragic fate in the present. He's reckoning with the consequences of his past actions that unwittingly led to the rise of Tokyo Manji, a dangerous gang led by the brutal Tetta Kisaki. Nevertheless, Takemichi time travels once more to investigate Black Dragon, a rival motorcycle gang responsible for Hinata's death. There he meets Hakkai Shiba, a new member of Black Dragon whose older brother, Taiju, holds sway over the gang. Taiju inflicts serious wounds on Takemichi, compelling him to keep Hakkai from joining Tokyo Manji as a way to atone and avoid a dismal future. Through their mutual tragedy, Takemichi and Chifuyu Matsuno find comfort in each other's company. They team up to uncover the fate of Black Dragon and work towards a brighter future for their loved ones.