" Hey, I have a book that you want to recommend for an ancient heart-wrenching romance novel where the male and female protagonists hurt each other. It's called Heart-wrenching Concubine: The Dark Lord's Forbidden Pet. This book was about a female protagonist who was locked by the male protagonist's side. Every night, she would be gentle and affectionate, and her ears would be filled with sweet words. However, when she touched the boundary of happiness, it was only to push the female protagonist into a deeper abyss. When would the love and hate entanglement between the two people end? I hope my recommendation meets your needs.