So I remembered this manga I once read and basically this guy is kicked out of the demon lords army and saves a girl. She takes him to a human village and he finds out that he was actually human and that he had the abilities to wield all for magics or whatever they were. There were 4 of them and I remember one of them was called like stinger or something like that. Also the part that I stopped at he married the girl he save and had a child with her.