Rescued from nearly drowning in a river, a young Chidori yearns to pay back her savior's kindness. Though her cute and innocent appearance might not show it, she is actually a highly skilled ninja, so years later, Chidori and her friend Sukezou come to serve under the man who saved her—the ambitious warlord, Nobunaga Oda. As Nobunaga fights off invading forces and sets his sights upon neighboring lands, Chidori is as...