Gods- Sun and Moon. Consider an all-powerful deities
Spirits- Children of deities have the same power as their parents (Lucas and Phoenix classify as spirits)
Spiritual users (Now known as Kindred)- They are descents of the God's bloodline and can use some of the God's power.
Emperors/empresses- royal bloodline
Kings/Queens- royal blood line
Duke/Duchess -Nobility
Lords/Lady - Nobility
Baron/Baroness- Rich commoners
Knights
Commoners- Commoners can become knight through training and trials. Human weapons are automatically place as knights
Magic users could be born into any of the ranks apart from spirits or Kindred.
The higher you power ranking the more likely you will be given a nobility status. All nobility has high power ranks. If a child is born into nobility but has a low power ranking and doesn't improve, they could fall out of nobility. This does not apply to the royal bloodline.