[ Manga Sex ] Taimanin Asagi 1 Episode 1

Based on the video game by Black Lilith, Igawa Asagi is a seasoned shinobi. She believed she had finally achieved peace with her archenemy after a lengthy period of struggle. However, her archenemy was resurrected from the dead as a result of a contract she struck with the city's chief demon, who vowed to get revenge on her by harming people who were close to her. Her fiance, her sister (who is also a Shinobi), and she herself are all involved in the act and are being tormented mentally and... sexually.