Legend has it that the Unbounded Dao Pill can greatly enhance a cultivator's aptitude, but it is exceedingly difficult to refine. Not only are the materials hard to find, but an Immortal Artifact level Heaven and Earth Melting Furnace is required for its creation, and it often takes several thousand years just to produce a single batch.
To prevent the medicinal effects from dissipating, even the jade bottle storing the pill is specially crafted, engraved with the design of the ancient fierce beast Taotie, making it easily identifiable.
This small jade bottle before her seems unremarkable, but she would never mistake those patterns.
Of course, it's not that it can't be counterfeited, but Yin Fengtu had no reason to deliberately trick her.
