Amid a sudden rainstorm, ninja Miko finds herself drawn to the enigmatic Hidemasa, sensing an immediate and profound connection that stirs her deepest hopes. Yet the arrival of the ancient male and female flutes disrupts everything, unleashing strange forces that endanger her family and women across the world. As her friend Fubuki watches with growing unease, Miko must set aside her budding feelings and seek Hidemasa’s help to uncover the flutes’ secrets before it is too late.