Elixir of Longevity

Chu Hanjiang was an orphan. He saved a dying Taoist and learned crude alchemy skills. After the Taoist died, he made a living by refining the lowest level "Qi Rejuvenation Pill". In order to earn more spiritual stones, he was introduced to the "Shen Nong Sect" to sort waste pills. While sorting waste pills, he accidentally discovered an inconspicuous gray pill, which opened the way to becoming a saint with pills.