Gu Yan, the notorious wastrel of Qingyang City, is mocked by everyone as an idle playboy who has squandered his family's fortune. Yet, with the extraordinary mastery of fire control and profound knowledge of alchemy accumulated through refining pills in a hundred thousand furnaces, he can turn discarded medicinal ingredients into top-grade pills. He exposes fraudulent pill recipes in public, breaks through predicaments with alchemical fire, and establishes his authority through alchemy. Step by step, he brings the declining Gu family back on track and restores its former reputation.