The worldview of the Ishnu series of novels varied from one novel to another, but generally speaking, the story of the Ishnu series took place in a fictional ancient world. This world had a rich history and culture, and there were also various mysterious magic and myths. In the story of the Ishnu Nabistin Ark, the protagonists met various mysterious creatures and magic in a kingdom called Nabistin. At the same time, they also explored the politics and history of the kingdom. In Origins of Isu, the story was set on a continent called Fergena. The protagonists began their adventure and explored the politics and history of the Fergena continent. In the story of the Ishvilgena Vow, the protagonists continued their adventure in a kingdom called Nabistin and defeated the evil forces to maintain the peace of the Fergena continent. In general, the worldview of the Izu series was different in different works, but they all had one thing in common, which was that they were full of mystery and fantasy. These works were also loved by readers because they not only contained exciting adventure stories but also deep philosophical and emotional thinking.