Miko Mido, a young kunoichi, embraces her sensual destiny as she is initiated into the ancient and erotic arts of her ninja clan. Her training becomes intensely personal under the guidance of her mentor, Ranmaru, as their lessons evolve into passionate, explicit encounters. Through their shared intimacy, Miko discovers profound pleasure and power, binding them in a deep, carnal connection that awakens her true potential as La Blue Girl.