Leader of Sekihoutai, Sagara Souzou, staying ahead of the turbulence era with his people. High School student, Miyasaka Kotetsu, aiming to be the top in Kendo with his younger brother. In order to change the world, In order to protect you, guided by the red string of fate. They encounter as they transcend through time. The revelations of the Bakumatsu era and youth unfolds here!