1: humans, descended from those cultivated by indulgence.
2: they generally have tanned skin, and darker hair. Nothing else to note about them.
3: the swamplands and plains of Velia (continent on Arvus)
4: humans (and the planet) were created by indulgence, and later nurtured by corruption.
5 they’re a trio of countries, each having a separate form of government. Isnea, which uses and oligarchy, Corul, that uses a monarchy, and Sertl, which uses a meritocracy. Isnea and Sertl mutually hate one another, and Corul always tries to keep the peace between them all. Corruption will sometimes intervene, sparking or stopping conflict. It depends on how long peace or war as lasted.