What if the theory in Steven universe was true, their in war with another race, but here's a twist. Only one diamond is working for them and one shadow demon rebel against her wishes. That shadow demon is Gray Diamond gem/immortal human hybrid. who rebel against both of her mothers wishes and is now a traitor and is wanted for rebelling against her kind. Avery had hid ever since Rose Quartz AKA pink diamond started the rebel group called the crystal gems, she had to lie to her ex and friends about her death for all those years.