Tokyo Ghoul x Attack On Titan

Once before there was a world of divine peace, there harrowed destruction and haos beyond the recognition of hysteria. It plagued the world in more ways then one, and reshaped our people's hopes that one day we would see that light once more....Not only, was there death splattered from the outside painting it crimson, but on the inside we can't even recognize who is one of us anymore while the innocents are massacred and torn apart by the one's we used to call family. There is nothing we can do....or, nothing we haven't at least thought of yet. We...we have to...try. Or else, we wither away like the rest of time and are forgotten.

A new species has entered the land of the Titans, and are recognized as a new kind of breed that they would soon learn to be named Ghouls. At first it was decided that they were some sort of derivative of Titan, however their physiology spoke differently as they were able to manifest their bodies into horrifying ligaments of sorts. A mad scientist who'd worked to uncover the sequences in Titan and Ghoul DNA came across two parent factors, and spliced them creating two types of species in the Adam and Eve project. Only two were needed, with specific blood types, personalities, and reactions in order to fulfill the requirements. But in turn, their bodies were transformed and the outcome was two titan ghoul crossbreeds.