Chimera

Chimera (キメラ, Kimera) is the term used to refer to an individual who is of mixed race. Voidic call them "Crosses" while in some cultures, they are referred to in a derogatory term "Mules".

Expression of parental traits
Chimera typically have intermediate traits, meaning an equal mix of the traits of both parents, though this only happens for half-bloods. For example, an Eyra parent with dark skin and long, silver hair and a Human parent with light skin and short, dark brown hair would have a Half-Eyra Half-Human child that possesses shorter, pointed ears, medium brown skin and brown hair. It is also common for Chimera to possess traits that can be seen separately from both parents. Taking the same parents from above example, the child may possess the Eyra parent's long silver hair and the Human parent's light skin.

However, this doesn't apply to unequal mixes, and for the case of Raudurion and Regalia. Typically, the dominant blood expresses more traits from that race than the other, although traits of the thinner blood are still visible.

Raudurion Chimera
Raudurion blood can easily dominate in the progeny's phenotype; all individuals with any ratio of Raudurion blood possess the race's red hair and yellow markings, often bright-colored eyes.

Raudurion can procreate with Vidur, but the resulting offspring will be unable to reproduce, resulting in a reproductive isolation.

One race that the Raudurion blood cannot coexist with is the Regalia. Raudurion-Regalia Chimera often die in the womb, and only live to a few hours otherwise. The blood of both races reject each other, resulting in the collapse of the immune system in the early stages of the development of the fetus. There are those who survive until their adulthood, but only number to one of a hundred thousand Raudurion-Regalia, and only those with a Regalia mother.

Regalia Chimera
Regalia blood would dominate the offspring's traits, often producing Regalia-like offspring.

However, Regalia cannot copulate with Raudurion for reasons stated above. Miraculous survivors, however, are said to possess tremendous power.