The reason Ning Xuan was able to produce the Soul Cleansing Pill was because she had researched the old headmaster's condition in advance. If one was to give a gift, it should naturally be something the recipient needed.
The Soul Cleansing Pill was one of the more difficult High-level Elixirs to create, serving as a true test of an Alchemist's skill.
However, the raw materials for this Elixir Pill were relatively easy to obtain. Even the few precious ingredients required were quite common, and there were no strict requirements for their age. After gathering all the ingredients, Ning Xuan attempted a few batches and ultimately succeeded in creating two bottles of Soul Cleansing Pills.
