The Yin-Yang Marrow-Cleansing Pill was a pill Yao Lao had accidentally created while developing the Yin-Yang Profound Dragon Pill years ago. Its main ingredients were much the same, except that several core medicinal ingredients capable of bringing the dead back to life had been replaced with spiritual herbs that cleansed the marrow and reforged the bones.
That single change turned its effects upside down, fully revealing the mysteries of alchemy.
If a child took a Yin-Yang Marrow-Cleansing Pill, it could thoroughly cleanse their marrow and reforge their bones, even transforming their aptitude and turning an ordinary person directly into a genius.
For adults, although its effects were no longer quite so astonishing, it still offered tremendous benefits to their cultivation.
Xiao Yan was refining this Yin-Yang Marrow-Cleansing Pill specifically for Ya Fei. Of course, once his alchemy became more mature, he would refine one for each woman in his harem.
After all, whether Yun Yun or Nalan Yanran, their so-called talent was merely average in Xiao Yan's eyes.
The youths of the Xiao Lin Lineage who had come to the Jia Ma Imperial Capital possessed such fearsome strength at their age not only because of their Dou Di Bloodline, but also because of their family backgrounds.
Xiao Clan descendants like Xiao Yan, whose grandfathers were Dou Shengs or Dou Zuns, had eaten Seventh-Rank Pills like Mysterious Bodhi Foundation-Building Pills like candy since childhood.
Even those somewhat less fortunate had grown up taking fifth- and sixth-grade pills to cleanse their marrow and reforge their bones. With such immense resources poured into their upbringing, even a pig could have been built into a fifth-tier magical beast, let alone these youths, who already possessed considerable talent.
Boom! The Seven-Colored Fire Lotus burned within the Medicine Cauldron once more, but this time, Xiao Yan's