27-year-old Yazaki Junpei has come back to his hometown of Matsuyama in Ehime Prefecture for the first time in 10 years after working in Tokyo. As the grandson of the bad guy “Red Shirt” who was punished by Bocchan in Natsume Soseki’s novel Bocchan, he has hated this town which continued to be regarded with disdain, since childhood. An old man picks a quarrel with Junpei inside a streetcar as he heads to his parents’ home in Dogo. Could this man be the Bocchan who once acted violently with free abandon in Matsuyama!?

Manji, a highly skilled samurai, becomes cursed with immortality after a legendary battle. Haunted by the brutal murder of his sister, Manji knows that only fighting evil will regain his soul. He promises to help a young girl named Rin avenge her parents, who were killed by a group of master swordsmen led by ruthless warrior Anotsu. The mission will change Manji in ways he could never imagine.