What if we were the trolls?
And i mean that in a specific way, being as that there were no trolls, only an alegory for humans not part of earths society.
So basically everything would be the same as in homestuck, each different blood color had diffeent abilities and lived different lengths(red being the shortest) even the ungodly inventory system from sburb.
One day, the high bloods go “Huh, this is kinda boring subjugating all these people the same way, why not try and instead try and sperate them onto a planet with their own blood caste and leave them without any human contact!” And so they did.
With no one to teach humans what to do, we bumbled and became as smart as caveman. With the sylladex picking up random junk we couldnt really do much for a while excluding launching things at each other and all the creatures of the planet.
After a while the high bloods got bored and decied to intervine in the situation, sending other rust bloods down to teach us how to create weapons, hunt, ect.
Humans evolved on the planet, while the highbloods and other humans watched like a television show. After a few centuries earthlings began to change, due to the emense psychic power that red bloods normally had we were able to unintentionally create a second layer of skin under ours to cause us to avoid the use of the sylladex and use more simple weapons. Pigment was formed a while after, allowing us protection from the sun and from we gained a thicker, more fragile layer of skin.
The high bloods at this point saw this and went “well shit, I want to see this up close.” So they came down to earth in small fleets to explore and experience, as well as helping us form cultures based on theirs.