売淫令嬢 ～周防院櫻子の罪穢～

The story follows Suouin Sakurako, born into a prestigious family that faces financial ruin. To save her father, she agrees to auction herself at an exclusive club, leading to her sacrificing her purity and facing exploitation. An unexpected pregnancy leads to further degradation, triggering a transformation in her nature. As she navigates torment and pleasure, Sakurako confronts a crucial choice that will determine her future path.

[Condensed from Getchu]