Mystery detective romance novels are a genre that usually contains these elements: 1. Suspense: There are confusing clues and mysteries in the plot that require the reader to reason and solve on their own. Detective: There is a detective character in the story who is responsible for investigating and solving cases. Romance: The love elements in the story usually involve emotional disputes and love relationships. 4. Detective novels: In addition to detective elements, there are also some reasoning elements such as logical thinking, inference, and speculation. The novel's plot is compact and full of suspense, making the reader curious to know the ending of the story. These elements could be used alone or in combination to create different styles and types of stories. For example, a mystery detective romance novel might describe the love story between a rich girl and a young detective. They gradually develop feelings for each other while investigating a murder case and solve the mystery behind the case. This story may involve some complicated character relationships and psychological descriptions to allow the reader to understand the story more deeply.