Erier Stories

Humanity's on the edge of the cliff, overpowered by creatures of the unknown , who can help the last of our kind? ( I used concepts from black bullet and shingeki no kyojin/attackontitan , I own none of these characters , this is a erenxlevi story as wel hue hue hue , none shippers who are toxic pls exit and no hate pls this is my first time writing a fanfic) Hope you enjoy :)