Shadow X Ghost [Light Novel, Ultimate Life Form!Maria]

What if Maria Robotnik was turned into the Ultimate Lifeform? But not in Shadow's timeline...

Shadow the Hedgehog crushed Black Doom, and yet the Black Arms have returned with new colors and a new master. This master seems to be none other than Maria Robotnik. Yet she now calls herself "Ghost" and is clad in a spooky vantablack outfit, complete with all the abilities of the Ultimate Lifeform and all the cold, ruthless aggression of a Black Arms warrior. Like a curse from the universe itself, Shadow is forced to fight the one he loves.

Even stranger: the real Maria has appeared as well, created by the Phantom Ruby. Kind and graceful, unaware of her fate in a future past, she is everything Ghost isn't, and keeps Shadow grounded. But why is this happening, and what is the truth of Ghost's past?

Shadow's past always finds a way to keep dragging itself back into his life!

He was always kept from the dark because of her light. Shadows are proof of the light. But a light with no shadows can burn out without noticing. And there are no shadows in darkness. Only ghosts.

Dark/Ultimate Life Form Maria-meets-Shadow AU
Light novel, so there's a good number of artwork as well

If you adore aura farming, Team Dark shenanigans, and Mariasploitation, this is for you!
Now with a TV Tropes page: https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/ShadowXGhost