Lin Hao, a civil engineer, traveled through time and became the proud head of the most miserable sect in the world of Xianxia. Facing the annexation by a powerful enemy, he took out his CAD... No, he took out the Engineering Eye! Since then, the style of painting in the world of immortality has changed dramatically: concrete pouring to protect the mountain, and fluid dynamics to optimize the spiritual field. When various immortals and demon emperors lined up to ask him to do the project, Lin Hao looked at the drawings and pondered: "Guarding world peace? Let's talk about the budget and construction period first."