Uncertified Hashira, The Warrior of Shadows

This is a collaboration fanfic with a friend please see feitanzoldyck8 for the other side of this story. This story however is the story of a slayer who was not exactly trained like others . He also has to keep a secret about himself hidden with the aid of his sister Izanami Gaia. This is the story of Rune Spectre, an aspiring slayer who is about to find something he never expected to find in his destiny as a slayer at his level.