In 1580, Lord Nobunaga Oda unleashes a ruthless army across Japan, slaughtering anyone who opposes him. A young ninja survives the destruction of her village, clutching a short sword, one of three legendary weapons capable of ending Oda’s reign. Along her journey, she is joined by two other ninjas, each wielding one of the remaining mystical weapons: a sacred sword and a spear. Together, they seek to overthrow the tyrant and restore peace.