In ancient times, there existed the "alchemist" profession, which was divided into the alchemist school that pursued immortality and the medical elixir school that refined practical elixirs (healing, detoxifying, etc.). There was a huge gap in status. The royal family and the powerful had a strong demand for high-level elixirs, and there was a hidden power transaction. The female protagonist went from a "chemistry bull" who just wanted to save her life to a "medical elixir master" who changed the era with her professionalism; the male protagonist went from being a machinist to learning to compromise for love, and the two completed redemption together.
