[Machine Translation] Ishifusai, Munenori, Jubei... The Yagyu clan has produced many famous swordsmen who have risen to the position of Shogun's family leader. Retsudo, the youngest brother of the Yagyu clan, is a stray Yagyu, but has mastered the secret of the Yagyu Shinkage style, "Nishiezui," and has become the strongest swordsman in the clan. However, a startling enemy appears, one that could bring Retsudo to the brink of defeat. In order to defeat the strongest enemy who manipulates the "divine sword", Retsudo challenges the "no sword" of the founder, Ishifusai.