C326 In the Demonic Beast Desert

A hundred years seemed like a simple number, but for an ore that had to withstand the high temperature of the earth's core all year round, it was absolutely unimaginable.

Because every time it underwent a transformation, the ore would have the risk of collapsing.

In other words, a diphtheriae radix was basically a material that was hard to come by, and could only be chanced upon by luck