I recommend to you two novels,"Don't be too childish, childhood sweetheart" and "I dumped the male protagonist after I entered the sadistic novel". The former was a modern romance novel about wealthy families. It had elements of childhood sweethearts and sibling love, and the plot was heartbreaking. The latter was an ancient romance novel. It mainly told the story of the female protagonist who could no longer tolerate the abuse of the male protagonist and successfully dumped him to become the master. There were also scenes of physical and mental abuse. I hope you like my recommendation. Muah ~