Lu Changsheng, a genius disciple of the Tianyan Sect in the immortal world, died tragically due to being framed. After being reborn and returning to the urban university era, he accidentally activated the Tianyan system and gained powerful arithmetic ability. He used the system to deduce heaven's secrets, seek good fortune and avoid evil, gradually rose up in the city, and resumed the path of spiritual practice. In order to take revenge, he must continue to improve his strength and uncover the truth of the conspiracy in his past life. At the same time, he also discovered that there was a certain connection between the city and the fairy world, which hid a greater crisis. Lu Changsheng travels between the city and the world of fairy tales, meets his confidante, battles wits and courage with his former enemies, and finally becomes the God of War who knows all the secrets, reveals the truth behind the world, and protects everything he cherishes.
