Hello, I can help you answer this question. In this novel, the male protagonist was the adoptive father of the female protagonist, but at the same time, he also served as the female protagonist's class teacher. The female protagonist had always had a crush on the male protagonist, but the male protagonist had always treated the female protagonist as his daughter. It was a very common scenario, usually involving a foster father and a stepfather. Their relationship with their biological daughter might be distant, but their relationship might also become closer for some special reasons. In this novel, the male protagonist's role might make the female protagonist feel a special warmth and fatherly love that made her feel at ease and comfortable. However, the female protagonist had always had a crush on the male protagonist. This feeling might make her feel conflicted and troubled. She might feel that her crush was not noticed by the male protagonist or that her feelings for the male protagonist were not recognized and accepted. At the same time, the male protagonist's fatherly attitude towards the female protagonist might also make the female protagonist feel troubled and uneasy, making her feel that she was not cherished and loved. This was a rather complicated plot that needed to be analyzed according to the plot and character of the novel.