Yan Qingwan's inheritance of Second Tier Pill Master techniques obtained back in the day wasn't particularly advanced, similar to Alchemist Mo's legacy back then. Li Ji'an refined and improved upon them extensively as a foundation.
Ever since the Fire Spirit regained its peak power, comparable to Second Tier Pill Fire, he has persistently experimented and adapted.
He even simulated the Foundation Establishment Pill refining process many times in his Sea of Consciousness.
Although it was his first time now, he felt no unfamiliarity.
Li Ji'an sat cross-legged, holding his breath and concentrating his spirit, channeling the might of the Fire Spirit. As its Primordial Spirit Flame erupted from beneath the Pill Furnace, Li Ji'an followed the steps, sequentially adding medicinal ingredients, adjusting temperature, controlling Spiritual Pressure, and refining the medicinal essence...
