The ability to wield magic is linked to specific "magic genes" that individuals possess. These genes are recessive, meaning they require both parents to carry the genes for a child to inherit magical abilities, which led to a decline of magic genes in the general population. This also means that a child cannot inherit magic abilities that are not present within their bloodline (unless it is a serious mutation).

The nobility, who recognized the value and power of magic, engaged in selective breeding to maintain and enhance their magical lineage for centuries, if not longer. By marrying individuals with known magical bloodlines, they increased the likelihood of passing down magic genes to their descendants. As a result, the nobility became more likely to possess magic genes and have a higher concentration of magical abilities within their ranks. However, it should be noted that magic genes can and do sometimes skip generations.

However, even among the nobility, the strength of magical talent can vary. The percentage associated with each type of magic within a person represents the estimated strength of an individual's magical abilities based on their magic genes. Factors such as training, experience, and personal development also play a role in determining the extent to which individuals can harness and utilize their magical powers. Due to the variety and combination of magical genes, there are no dedicated schools of magic, as magic cannot be standardized. Individuals are usually trained by family or dedicated tutors or people who possess similar magic genes.