The contemporary Blue Star (Earth) is on the eve of the "resurgence of spiritual energy": on the surface it is a modern city where finance, medicine, the Internet and the public security system operate; on the dark side it is the "inner world" where ancient martial arts families, monastic traditions, black market auctions and a small number of awakened people are intertwined. Blue Star is not an isolated world, but one of the three realms of the "Human Realm": above it is the remnant realm of cultivation called the "Spiritual Abyss Realm" (with more spiritual energy but incomplete laws), and further outside is the "Xinghai Tianyu" (the scope of activities of the All-Heaven Sect, the Star Boat Merchant Alliance and the remnants of ancient civilizations).
Ancient history spans ten thousand years: in the ancient "Tianmen Period", the human world was once connected to the spiritual abyss, and the Immortal Sect set up an altar and established a religion here; later, the "War of Severing Heaven" broke out, and various sects competed with each other to compete for a treasure "Hengtian Seal" that can rewrite cause and effect. Nowadays, the spiritual energy tide is rising again, old ruins and forbidden lands are gradually "resurrected", "spiritual eyes" appear in coastal areas such as Haicheng and Jiangzhou due to the return of earth veins, and the black market elixirs and rare minerals are skyrocketing. The protagonist Lin Yuan was a monk in the late Nascent Soul in his previous life. Before his tribulation, his soul fell into the body of a young man with the same name in the city. He took a broken storage space (suspected to be a relic from an ancient battlefield), practiced medicine in a community clinic, and made friends with the upper class. He gradually uncovered the truth about the Battle of the Sky and the clues to the Hengtian Seal.