I recommend "I Teach a Tyrannical CEO How to Be a Person" to you. This is a modern romance novel, and it's not too cruel. The female lead, Lin Yu, was a romance novel lover. She had transmigrated into a sadistic novel and became the female lead, Lin Siyu, who had been abused and framed in various ways. However, Lin Yu was not a coward. With her sharp tongue and high IQ, she taught the male lead Gu Yanchen how to be a good citizen. In short, this is a very sweet novel that won't make you too sad. I hope you like my recommendation. Muah ~