Unobservable

As gates to other worlds opened, some humans gained powers that were out of this world. People gained superstrenght. People began to fly. People became faster. There was many powers that helped humanity to evolve to a next step. Our protagonist Luke is a 16 year old student with the ability to be unobservable by any method. Many have given him the nickname "Ghost" as he can appear out of nowhere if he so wished. But unfortunately Luke has a serious mental illness that seems to worsen every time he uses his powers. Nevertheless, Luke has friends that he can rely on and maybe, just maybe, he will one day be able to live like a normal person.