In the 16th century, the evil Nobunaga rampages across the land in pursuit of the "Tenka Musou's" limitless power. When his vicious troops arrive at a simple village, caught in the middle is Han, teen slacker and assistant to the village baker. Han soon reveals herself as Hattori Hanzo, a skilled 18-year-old ninja trapped in a 13 year old's body. Infuriated at Nobunaga's brutality, Han vows to take the fight to its source, finish what Nobunaga started, and send him where he belongs!