When Darkness Plagues Our Bond

Adalyn has occupied this planet for four centries, unsure of the exact date. Wondering around the Earth alone, confused, and plagued.
Her travels bring her to the City of Sin.
Here she's found some sort of purpose unknown to her.
With endless food supply, and lights that are bright enough to remind her of her humanity, she has no intention to ever leave.
Yet one night brings her one step closer to life.
She comes into contact with her sole purpose of existence.
But will she survive the heartbreak, confusion, and lust that comes with the bond?