User blog comment:Avatar226/S-Class Contest/@comment-7577835-20131214202759/@comment-7418318-20131214233407

I disagree on the three following points:
 * (uncertain) The Ren and Sherry thing started right after the Nirvana arc.
 * (uncertain) While unlikely, it's still possible that Millianna might already have joined MH during the Nirvana or Edolas arcs.
 * Raven Tail became a legal guild only after the Tenrou team came back. With the total surprise of not just Fairy Tail, but the other participants too, this must have happened very shortly before the start of the games, which would put it into the three month training/celestial-spirit-world-party period.