Cultivation: Fed Two Poison Pills from the Start

At twelve, an orphan boy accidentally wandered into a deadly valley shrouded in poisonous miasma, where he became a living cauldron used by cultivators to filter poison. A yin-yang demon pill entered his body and gave rise to a chaotic counterpoison. The poisoner was struck by the backlash and died instead. On the brink of death, a spirit fungus ripened, locking the poison in place with its life force. Shen Yan escaped death and obtained half of the Myriad Poisons Devouring Spirit Scripture. He tempered his body with the remains of poisonous beasts and used miasma as fuel for his cultivation. The myriad poisons that ordinary people cast aside as worthless were, to him, the very foundation of the Great Dao. Emerging from the poisonous valley, the youth carried his counterpoison with him as he traversed the Hundred Thousand Mountains of the Southern Frontier, proving the Dao through myriad poisons.