Concocting the Spiritual Longevity Pill was far more complex than the One Yang Pill.
It required over twenty types of Spiritual Medicine alone. Combined with its unique fusion sequence and demanding requirements for one's Martial Soul Fire, the process was incredibly complex.
A Spirit Level Alchemist wouldn't dare attempt to concoct such an elixir without decades of experience. Otherwise, it would be a complete waste of Spiritual Medicine!
But Chu Qingyun wasn't concerned. He could practice to his heart's content in the Illusion Realm.
Thanks to his experience from concocting the One Yang Pill, he ruined far fewer Spiritual Medicines this time. After all, though the elixirs were different, many of the principles were the same.
After practicing every detail of concocting the Spiritual Longevity Pill to perfection in the Illusion Realm, Chu Qingyun returned to the real world and began his work.
This time, he was truly in the zone.
