"Purple Mansion Alchemy Sutra": Mo Chen worked as a handyman in the alchemy room. Due to accidentally eating the waste "Cleaning Pill", purple mist appeared in his Dantian. This mist can purify impurities in elixirs. The lowest-level Qi-solidifying elixir he secretly refined allowed Elder Foundation Establishment to break through the bottleneck. When the purple mist surges, the elixir furnace always buzzes like a dragon's roar.
