As Oda Nobunaga's unification of Japan looms large, a mysterious religion called "Kinmekyo" spreads across the southern part of Lake Biwa. Those who do not believe in it are said to suffer a horrible curse. Determined to uncover the truth, Nobunaga secretly calls upon a masked ninja to investigate the Kinmekyo. Thus begins the tale of a young shinobi, who rises from the shadows to become none other than Masked Ninja Akakage.
On a spring day Munakata Ikujou visited an old temple to view a 1000 years old sakura tree. There Ikujou discovered a 3-year-old girl and adopted her as his own daughter. 16 years later, Sakurako has grown up to become a beautiful woman. Sakurako then has a fateful meeting with Takanashi Hiroto. Their pure love begin.
Set in the Sengoku Period. Retired from ninja duty, Torakage lives a peaceful life in a small village with his wife and son. One day, Torakage’s son is kidnapped by his former master in an attempt to force him to break into a nearby castle and steal the Gold Scroll, the counterpart to her Silver Scroll, the two of which when brought together point the way to a vast treasure. Having no choice, Torakage and his wife sneak into the castle. However, their plan goes awry and the two are caught and turned over to the evil lord. Now, with his wife a hostage of the lord, Torakage must bring him the Silver Scroll held by his former master or forfeit her life! Utilizing weaponry crafted by an eccentric inventor, Torakage takes on both sides and plays them and their ninja armies off each other in the hope of saving his family.
