Synced Nightmare

This is the story of a man who died a rather traumatizing death and reincarnated in an alternate Earth similar to his own, the Earth being the Walking Dead Universe. He, however, gave up being flesh and blood, becoming something Humanity could've reached in time when presented with a task and being able to decide what he wants. He won't be a happy-go-lucky character, he will kill people for seemingly no reason at times.