Okay, this is a Gift Fic for my friend Shazzle, so it's not likely to make any sense to anyone else unless you keep up with us on Tumblr (vagantum-custos && heavenxpiercing respectively). ShiroAeo for the win~
Basically, it's Shiro being a sappy-murdery bf for his poor gf who's gone though too much and been hurt too many times over the years as she's being forced to save the multiverse all on her own by a corrupt council.
His.
She is his.
They might have chosen her. They might have made her. They might have shaped her into the person she is today. They may even hold her soul in their filthy depraved hands. Yet they do not own her. They do not possess her absolutely. They have nothing compared to him.
Because she chose him.
She gave herself to him.
Gave him her laughter and smiles. Gave him her trust. Gave him her warmth and joy. Gave him her companionship. Gave him her heart.
She knew he was untrained in this. She knew he had no idea how to handle such a thing as a heart, having never had one to call his own. Still she gave him hers and asked him to keep it safe. To protect it. She trusted him with her life.
He was a foul creature. A freak accident. An experiment gone wrong. He knew this. His host knew this. She knew this. Yet she trusted him. Though he could give her nothing of which she truly craved— love, a home, a family— she trusted him.
The guardian, the traveler, the Wandering Angel trusted a heartless beast— The Hero's blade, his very Inner Demon. Fell in love with him even. How poetic. Beauty and the Beast. The Angel and the Demon. The vessel of Salvation and the incarnate of Damnation.
To love the weapon of another was a doomed love, for a weapon could never leave it's master's side. This was especially true of a Zan who could not bear to be separated from their wielder, their soul's literal other half, for too long. Though they were sentient, though they could wander, should they go too far— remain away too long, they would being to ache terribly for their other half. Despite his hollow nature, he was no different from the rest in this regard.
To love a hollow was a love doomed as well for they had no hearts by which to return this love. They could not feel. They could care, they could protect, they could do so much, yet they could never learn to love. No matter how much they wished to.
Her love was twice doomed.
She knew this.
Yet she stayed.
She stayed.
No matter how little he could do for her, feel for her, she stayed. That alone was enough to make his cold empty chest feel something. Something almost akin to joy.
She was his.
And he would burn down the world for her.
He would crush everyone that ever made her suffer.
She was his.
And he would make the world blaze beneath their feet.
No one hurt what was his.
Anyways, hope you enjoyed Shazzle~ ❤