Kunishige Rokuhira is the most famous swordsmith in the land. Thanks to his six enchanted blades, the war that had been gripping the nation ended and peaceful days followed. After the war, he retrieved all six blades and hid them in the cellar of his workshop. However, sorcerers raided his home, stole the legendary swords, and left Kunishige dead in front of his son, Chihiro. Now Chihiro wields Kunishige's seventh and final enchanted blade on a mission to exact revenge and retrieve the swords his father forged.

As a young boy, Chihiro trained every day under his father to become a swordsmith. The two, although different in temperament, spent endless peaceful days laughing and working, but one day, tragedy struck... Now Chihiro burns with hatred and is determined to exact revenge on those who killed his father!