Peace Maker Kurogane, a newly adapted anime from the manga, follows Ichimura Tetsunosuke on his journey towards vengeance. Tetsunosuke has been deeply scarred by the brutal murder of his parents at the hands of the Choushuu. Driven by his desire for power and retribution, he joins the Shinsengumi at the age of fifteen, aspiring to become a respected member. However, he must first develop the necessary skills and emotional strength to carry out the group's mission of exterminating their opponents. Alongside his comrades, Tetsunosuke must confront the group's dark and bloody past, facing gruesome battles along the way.