C516 Pill Realm!
Legend has it that there was a supreme Sacred Ground in the Pill Tao, and it was a world jointly created by all the top alchemists in the Three Realms, called Pill Realm.
The Pill Realm was a sacred place in the heart of all alchemists, and rumours have it that it contained supreme alchemy techniques, limitless alchemy materials, and supreme grandmasters in alchemy