In the first class, the authors of online novels used different writing techniques to create characters. In " The First Class," the author described the two characters, Lin Qing and Lu Yao, who had different personalities and characteristics. Lin Qing was a brave, righteous, and principled person. He was willing to sacrifice everything to protect his friends and family. He was a protagonist with a strong sense of justice. On the other hand, Lu Yao was a gentle, kind, intelligent, and quick-witted person. She was able to calmly deal with difficulties and was good at grasping opportunities. She was a protagonist with outstanding wisdom and self-protection ability. Through the comparison of these two characters, the author highlighted the personality characteristics of the protagonist Lin Qing and also let the readers have a deeper understanding of the character's inner world. In Forest on the Road, the author described the two characters, Lu Li and Feng Mo, who had different personalities and characteristics. Lu Li was a brave, determined, and confident person. He didn't fear danger and constantly pursued his goals. He was a protagonist with strong self-confidence. On the other hand, Feng Mo was a smart, cunning, and insidious person. He looked gentle and kind on the surface, but in fact, his heart was full of conspiracies and tricks. He was the protagonist with a complicated inner world. Through the comparison of these two characters, the author highlighted the personality of the protagonist, Lu Li, and also allowed the readers to have a deeper understanding of the character's inner world. To sum up, the author used different writing techniques in the creation of characters in The First Class and Stranger Forest. "The First Class" highlights the protagonist's sense of justice and justice by comparing the two main characters, allowing the readers to understand the characters more deeply. In Stranger Forest, the two main characters were portrayed to show different personalities and characteristics so that the readers could understand the inner world of the characters more deeply.