My sister was assaulted by my brother-in-law... My fiancée was slept with by my brother-in-law. Miki Shibuya HBAD-264

Miki went to her sister's house to introduce her fiancé to her sister and brother-in-law, but unexpectedly, she caught the eye of her brother-in-law, unwittingly seducing him. After secretly raping her behind her sister's back, he subjected her to daily humiliation. She was coerced by him into fulfilling her mother's sexual desires for her remarried partner, and was further humiliated in front of her fiancé. However, as she was repeatedly raped, Miki's feelings began to change…