User blog comment:FairyRaven/Fairy Tail Chapter 448: Fight the Power! Review and Commentary/@comment-5303512-20150821030201/@comment-180.191.134.91-20150821150431

Okay so that answers the question, "If God Serena only joined recently who was the member he replaced or what happened to the 12th member after serena joined" There are 13 of them :o (kinda like the 7 kin + bluenote)