Lin Xian, a veteran fisherman, was brought into the world of cultivation by a mysterious fishing rod during a night fishing trip and became a handyman disciple of Qingxi Sect. Faced with the dilemma of lack of spiritual energy and mediocre qualifications, all his fellow students are practicing hard to compete for resources, but Lin Xian just wants to find a quiet place to fish. He was surprised to find that the fishing lines in this world could catch more than just fish - from ancient swords in the sinking river, sealed spiritual beasts, keys to lost secret realms, to the remnants of ancient great powers, fragments of the laws of heaven and earth, and even a wisp of purple energy. His Buddhist mentality and concentration allowed him to repeatedly enter the mysterious state of "unity of heaven and man", and his cultivation level improved unknowingly. However, his way of "getting something without fighting" first aroused jealousy and ridicule from his fellow disciples, and then alarmed all parties. The Pill Pavilion wants to buy his "catch", the Weapon Refining Sect wants to study his fishing rod, the evil cultivator wants to kidnap him to hunt for treasures, and the traditional cultivation giant Xuan Ming Ancestor even regards him as the "enemy of Taoism". Lin Xian had to switch from hiding quietly to using his own unique "fishing method" to deal with all parties: using the "nest-making technique" to set up formations to trap the enemy, the "fish-slipping technique" to resolve the force, and the "sea-fixing needle (fishing rod)" to stabilize the secret realm. From fishing alone, he met his junior sister Su Xiaoyu, reformed his senior brother Zhao Tiezhu, traded with intelligence dealer Bai Xiaosheng, and got the guidance of He Bo, and gradually formed his own "Diaoyu Alliance". The climax of the story takes place in the Eye of the Great Abyss. Ancestor Xuan Ming wants to forcibly extract the source of the world, the "Mother Qi of All Sources", to break through, causing an imbalance between heaven and earth and a riot in the aquatic tribe.
