Shadow Wolf

This my personal (oc) Shadow wolf (Nero the wolf)
To his story I'll give you a piece of it....He is child hood friends with Sakura the fox since they were three, but at the age of seven his family moves away to somewhere else, exactly three years before the tragedy occurred which involved Metal Shadow. Well since then Shadow wolf couldn't be but worried for her.
Right now he's about 19.
well personality, easy going and caring and only gets serios and violent when it involves friends being harmed, always willing to help a friend out.
let's also say he is connected to Nightmare in way.