In the second year of Meiji, Masujiro Omura became a target of assassination because he raised the dissatisfaction of some people by proposing proposals such as militiaism and the establishment of an arms manufacturing factory. Naoto Kamishiro sneaked into the house to assassinate Omura while he was drinking, but accidentally missed. He was shot and injured when the guards chased him. Fortunately, a woman protected him and evaded the search. From this, Naoto Kamishiro began to reflect on his career as a killer. He became depressed and his wounds worsened... This story shows the fierce political struggle and complex human entanglements during the Meiji Restoration.