BBAN-577 A reclusive investigator returns to hell. A former elite beauty, driven to depravity by the revenge of her former comrades, has fallen into the life of a pleasure-filled lace slave. (Mizaki Kana, Maeda Minami)

Kana, retired from her job as an investigator, was living a peaceful life in her rural hometown, healing the wounds of battle. However, that peace was suddenly shattered. Attacked by multiple assassins, Kana's life was threatened. Using her empty body left after retirement, she barely managed to fight back, successfully subduing the assassins, but the true identities hidden behind the masks were her former comrades. Wavering, Kana didn't notice the assassins behind her, and her consciousness was stolen. Then, when she awoke, she was imprisoned and unable to move… A tale of revenge and lesbian discipline, born from resentment and bitterness, now begins…