Concept: Abyssal men,

They look like humans, but they can effectively regenerate until they don't have the will to,

They look like humans, but with odd distinct features that vary,

Horns, (varying amount)

Long tongues,

And other Weird stuff,

Despite the fact they have men in the name, they can be biologically female,

Abyssal-Kin

Humans did what humans do in fantasy games and find a way to pro create with them,

But doing so creates Something... TERRIFYING

Humans have strong wills, and are single minded,

But somehow... It happens

But, Before they can breed, A contract must be formed, to

make the human, A Broodmother,

AND BEFORE YOU ASK, YES, MEN CAN BE BROODMOTHERS

The abyssal side of the relationship must inscribe something in ink, particularly above their nether regions, (Hips)

Due to some mystical stuff, the human is a Broodmother now,

Broodmother contract rules:

The ink seal must be applied consensually

if not, it ain't gonna work

If they have kids with another human after becoming a Broodmother, their procreation will still be a Hybrid (Abyssal-

Kin)

Broodmothers can procreate with abyssals, but abyssals can't procreate with eachother,

Hybrids can become broodmothers as well,

Now onto hybrid traits,

Abyssal-Kin traits:

Enhanced prowess of martial arts,

Feral instincts,

Stronger regeneration, Similar to abyssals,

Odd enhanced strength,