Ancient Daoists and Western Alchemists studied similar subjects, much like modern-day chemists.
However, unlike chemical scientists who solely focus on natural substances underpinning the laws of nature,
ancient Daoists focused on supernatural substances.
Certain materials, when specially treated, could yield solar iron sand.
Forging solar iron sand would then produce solar profound alloy.
This was a supernatural material that surpassed even diamond and titanium alloy in strength.
While Su Fan had learned medicine and martial arts with his grandfather in the mountains, he had heard about such things.
But this was the first time he truly encountered a supernatural material.
Su Fan read through the forging method several times and memorized it completely.
Then he turned to Zhao Chunqiu and asked, "What are your plans next, Old Zhao?"
Zhao Chunqiu replied without hesitation, "Enhance my strength, then take revenge!"