The Yisu series consisted of three Chinese web novels," Yisu Zhi,"" Yisu Ji," and " Yisu Biography," which told the story of the protagonist Yisu's journey in the mysterious world. The background of the story was a continent called Isu. This world had mysterious magic, myths, and legends, but it also had powerful enemies and dangerous opportunities. In this world, Izu was a young warrior who had been influenced by mysterious magic since he was young and had shown amazing talent. As he grew up, he met many teammates and enemies, experienced many adventures and challenges. The story mainly described the process of Isu's struggle against the evil forces. He led a righteous team to constantly fight against the evil forces and protect the peace and tranquility of the Isu continent. During this process, Izu gradually grew up and learned more magic and combat techniques, becoming a true hero. The stories of the Yisu series were filled with myths, legends, and adventure elements. The plot was full of ups and downs, and it was very popular among readers.