Fairy tail: the brother of erza

I was born as Erza's twin brother, but I will not be one of the fairies who will fight for the sake of his friends. I will kill whoever comes with the intention of killing me, I will fight against anyone looking for a fight against me, and I will travel everywhere creating problems wherever I go. This is going to make a slow story, in the first chapters they will find many grammar mistakes, but I have been improving in the other chapters, or so I think. I don't own anything from (fairy tail) (one piece)