A romance novel in which the male protagonist takes revenge on the female protagonist might include the following plot: At first, the male protagonist did not know the identity of the female protagonist until the appearance of the female protagonist, and the male protagonist began to have a good impression of the female protagonist. However, the female protagonist's family was once the male protagonist's family's enemy. The female protagonist's father was killed by the male protagonist's family, so the male protagonist held a grudge against the female protagonist. The male protagonist gradually discovered the truth of the female protagonist's father's murder and decided to avenge his father. The male protagonist began to collect evidence and plan a revenge plan with the female protagonist. In the process of revenge, the male and female protagonists experienced many difficulties and challenges, but they always firmly believed in their beliefs. During this process, the male protagonist gradually let go of his hatred and re-established contact with the female protagonist. Finally, the male protagonist successfully completed his revenge plan and got together with the female protagonist. The male protagonist said that he had never forgotten the female protagonist's father, but he also knew that after the revenge was over, they should put aside their past grudges and start a new life together.