Forgot the name of a novel. From what I remember: 1. the male main character looked kind of like a girl when he was young 2. He met a pair of brother and sisters and the brother had a crush on the main character because he thought he was a girl 3. Later in the novel, you find out that the father of the brother/sister pair is working for the enemy of the main character 4. Brother/sister pair get conflicted but then later help MC fight father (I think) I think it was a Chinese novel but I could be wrong.