The Natal Fire of a Natal Contracted Beast had always been a great help to a Spirit Master. On the mainland, there were four ways for alchemists and refiners to obtain fire. Ordinary fire, absorbing fire elements to change one's physique, obtaining natal fire from contracted magical beasts and the Natal Fire Body. The last one was especially rare. The quality of refining medicine or refining weapons was closely related to fire. Ordinary fire naturally could not refine high-grade spiritual weapons or elixirs. As for Natal Fire Body, it was a legendary existence that had only been seen in records and no one had seen it with their own eyes. Absorbing fire elements to change one's physique was very risky. Therefore, many alchemists and refiners chose to contract with magical beasts that had natal fire and use the flames of magical beasts to refine medicine or weapons.