Li Erniu, a young man with low-grade spiritual roots, accidentally obtained the alchemy furnace of Taishang Laojun. He relied on his diligence and hard work to change his destiny step by step. From an unknown little person, he set his own dream of alchemy to become a handyman disciple of the alchemy pavilion. He was ignored and treated coldly by others. Finally, by chance, he got the first elixir recipe. From then on, the gears of fate began to turn. Adapted from the Tomato novel Danchen Romance, written by Blue Chase