Romance novels where the male lead was the female lead's brother were often called " Brother Loves Sister " or " Orthopedic Affair ". This kind of plot was more common in novels. This kind of novel usually described a special relationship between the male and female protagonists. The male protagonist often had deep feelings for the female protagonist, while the female protagonist had no feelings for the male protagonist. This kind of plot often involved misunderstandings, reunions, mysteries of life, and other elements that made the story more twisted and moving.