When the King of Xiangyang unified the country and announced his father's Zen to the people on the top of Mount Tai, the heaven and earth changed, spiritual energy revived, sects emerged, and a new era came. The King of Xiangyang retired after his success and returned to his fiefdom. The protagonist Jiang Chen is the son of King Jiang Shan of Xiangyang. He has inherited the hope of his family and country since he was a child. Zhang Sanfeng, as a master, made an exception and accepted Jiang Chen as a registered disciple. He is the only one in the Wudang lineage. Half of the time was soaked in the intrigues and tenderness of the royal palace, and the other half of the time was spent practicing martial arts. Possessing the mysterious "Body of the Beginning" that is rare to see in a thousand years, he awakens his profound veins through the experience of asking for orders for the people and supporting justice, triggering the wisdom of the world, and has since been involved in the shocking catastrophe that is about to happen in the ancient Nine Nether Demon Realm. The trace of the Tiangang sword is blurred, and the safety of the three realms depends on one person. Only Jiang Chen can shoulder the important task of guarding the gate. Carrying the righteousness of his family and country and the safety of his people, the young man embarks on a long journey to the world of martial arts and immortality. Machiavellianism, chivalry, morality, and destiny are intertwined. He constantly breaks through himself and writes his own legend in the midst of catastrophe and growth. This book skillfully integrates historical figures and fantasy imagination, relies on the Taoist martial arts system, builds a magnificent world view, depicts a magnificent growth picture, witnesses how the son of a prince is tempered into a gatekeeper between heaven and earth, and leads readers into a fantasy epic journey that coexists with passion and philosophy.