Now cured of the rust plague but left immortal by the process, archer Bisco Akaboshi travels with doctor Milo Nekoyanagi to the region of Shimane, hoping to undo the curse. There the immortal monk Kelshinha ambushes him and tears out his stomach, leaving Bisco five days to live and the two of them chasing a thief through a land of rival faiths built on eternal life. This manga adapts the light novel's second volume, continuing directly from the first Sabikui Bisco story.