The second animated adaptation of Kyo Tanabe's comic Kunoichi Botan, Volume One. A shadow-bound ninja must obey her orders and complete her mission, yet the forbidden attraction between master and servant leads them to vow themselves to each other. Away from her master, Botan reluctantly serves her uncle, the venture's financial backer, enduring days of sexual service disguised as ninja duties. She chose this cage of pleasure to conceal the truth and support her lord, believing she had never surrendered her heart. Torn between loyalty to her master and the lust her aching body demands, her resolve begins to waver.