Food delivery worker Lin Shan is despised and divorced by his wife Zhang Wan, but unexpectedly acquires a black jade ring capable of traveling between two worlds. He resells modern supplies in the cultivation world in exchange for treasures to cash out on Earth, making a comeback as a cross-world trade tycoon. Using modern medical skills and weapons, he helps the Xiao family annihilate bandits, makes friends with the Xuanjian Sect, wins the heart of a beauty, and returns to Earth with cultivation power. As a result, he exposes his ex-wife's affair, fiercely slaps his face against the third party, becomes a life winner, and aspires to become Earth's supreme ancestor. Later, he gets embroiled in another world's power struggle, using modern weapons like drones and firearms combined with cultivation techniques to crush the enemy army, becoming the legendary all-treasure heavenly monarch straddling two worlds.