Li Lin, who possesses a rare blood type, is kidnapped by hospital director Yu Tiancheng and forced to donate blood. While escaping, he awakens the legacy of the Immortal Emperor of Alchemy, becoming the only cultivator on Earth. After killing Yu Tiancheng, he traces the conspiracy to the Qin family in the imperial capital and rescues his imprisoned mother, Qu Jinglan. He then discovers the truth behind a battle over the Immortal Emperor's legacy that began ten thousand years ago. To confront Xiang Tianwen, who has reached the peak of the Nascent Soul realm, Li Lin ventures into the forbidden territory of Eastern Continent, subdues the Suiren Divine Flame, and breaks through to the Nascent Soul realm. Finally, at Yunque Terrace, he faces Xiang Tianwen in a climactic battle that will determine the fate of the immortal path.