Unravel Me - Attack on Titan/Tokyo Ghoul Crossover

Akira Kamishiro was always intrigued by humans. So naturally experimenting on them was arousing to her. Once the death of her sister revealed itself to her she lost what little was left of her sanity. But one day wishing to escape her bloodied life she is transported to a new world. Yet what she thought would be a simple life ahead of her is nothing what she imagined. (You can replace my OC with your OC if you want.)