The Princess and her Warrior

Story-world:
An alien planet called 'Visparia' where everyone is split up into different classes depending on their skin colour and species at birth.
Visparian:
• Aela [eyy-lah] (Purple skinned): Are usually royalty, noblemen or upper class. Either way they rein over everyone else.
• Entli [en-till-lee] (Green skinned): are mostly really smart and are usually doctors, teachers and the like because of this.
• Vrate [ver-ate] (Yellow skinned): are usually stronger than the rest so are used as warriors, guards and mercenaries.
• Servi [sir-vee] (Blue skinned): is the lowest you can go without being a Slyvarian or worse a Neveri. They are slaves.
• Neveri [ner-ver-re] (Mixed breed): Is what they call an 'abomination' as no one sees them as a part of the Visparian race with their black eyes, sharp teeth and pointed ears that they inherited from the Slyvarians even though they were like the Visparians in every other way. The mingling of these two species was labelled as taboo and as such the offspring were usually killed at birth.
Slyvarian:
• Orange skinned: are what the Visparians call 'savages' with their black eyes, sharp teeth and pointed ears. They were once hunted to near extinction so there are only a handful of them left.