Creed is a storyline written by AzuWen and Smillingflower.
Far from the main Fairy Tail storyline there is a certain area which by others could be considered a completely different world known as Creed. In Creed, twins are rather counterparts are born and one day will combine as one. Unwillingly by birth, counterparts are either raised together or separately by their parents' own choices. Once this is done one counterpart may not have the same blood related relatives as the other. Thus there has been various conflicts.
A hundred years prior to the story, there was a certain conflict which lead to a war. This war was unbelievably dangerous to the point everyone who was not involved in it were to be put in capsules until the war was over.
Servants Of Homura Family