Invincible au variant that’s been eating at me
Cryptid/Eldritch Invincible, in which Debbie is an Eldritch being and Nolan is well Nolan. My thought process on this is that when Nolan comes to earth he doesn’t exactly understand human norms well, so Human shaped Eldritch Debbie wouldn’t ring any bells and he’d just have some sense that Debbie wasn’t “normal” or that she would give off some type of aura that’d ring the “Viltrumite love for strong beings” and such. Debbie would just be an immortal eldritch abomination trying to fit in being human for whatever reason and this Alien from outer-space intrigues her enough to procreate with. Thus making half Eldritch half Viltrumite Mark Grayson. Major Uncanny valley vibes from both Mark and Debbie because of this. Meaning Teen team would be rlly nervous around Invincible bc he gives off that “somethings watching” kind of vibe even though he’s not looking at you. I took this from my love of Eldritch Danny Phantom lmao.