Kunoichi Ayano Choukyou-roku Teki ni Torawareta Onna Shinobu no Niju-Nichi Kan RJ01637971

The “Kuroyuri-shu” (Black Lily Clan) is a ninja group that operates in the shadows during the turbulent Sengoku period.
Among them is Ayano, a kunoichi (female ninja) renowned as the strongest.
She fails an assassination mission for a certain daimyo (feudal lord) and is captured by Genzo, the leader of the enemy ninja.
Genzo, noticing Ayano’s superior ninja skills and beauty, decides not to simply kill her, but to “train” her and mold her into his loyal sex slave and assassination tool.
Bound in a dungeon, Ayano endures brutal physical and mental abuse day after day.
Initially, she fiercely resists, desperately trying to protect her pride as a ninja, but Genzo’s skillful torture and the pleasure-inducing training gradually corrupt her mind and body.
Memories of her mission, loyalty to her comrades, her own purity…
Everything is swallowed up in a vortex of pleasure, and her identity as a kunoichi begins to crumble.