One day at work, Jodie momentarily glances out of the window and in a split second her life descends into freefall. What she notices seems innocuous – two men walking on the opposite side of the road – but she's actually witnessed a killer and his victim moments before a murder.
Many years ago, a Great Civil War ravaged Japan, leaving the country fragmented between two regions: Kansai and Kanto. In Kansai, a group of six Akudama carry out missions given to them by a mysterious black cat, while evading the police. But a dangerous journey is about to unfold when a civilian girl becomes twisted into the Akudama's way of life and witnesses their criminal drives.