She Was Reincarnated as an Abandoned Concubine, and the Emperor Couldn't Sit Still.

My name is Qi'er, also called Qi. Let me tell you a story. She was abandoned by her parents when she was a girl because she was a girl. She experienced all kinds of hardships in the world, including beatings, betrayal, starvation, frame-up, and injuries. Her father even got involved in her, and her mother called her a bitch. She has experienced it all, and was even sold to a brothel by her parents since she was a child to pick up clients. If he didn't obey, he would be beaten endlessly, and his whole body would be covered in dirt. Later, she compromised and became the top brass of the brothel. She returned home and took the lives of the beast's parents with her own hands. Those who bullied her were killed by her own hands. Although he is a human being, due to the resentment in his heart and the fact that he killed a close relative, he actually grew a demonic heart out of thin air and became a demon. Later, she met her master and saw her own demonic heart. He said that he would take her to practice and become the strongest person. She thought it was salvation, but she didn't expect that it was actually a deeper abyss...