A very strong individual and one of the main characters of the series, Erza is known to be quite strict with the rules of Fairy Tail. If anyone steps out of line or is slow in doing what she asks, they are quickly punished. Even Natsu and Gray almost immediately stop arguing whenever someone mentions her name.
That is one of the most impressive cosplays I’ve seen in a long time! I got this from one of Tori Avalon’s plurks, and I thought it was definitely worth mentioning. Thanks to Panoramic Panda for sharing this!
EDIT: Thanks to anon for letting me know the cosplayer's name is Kristel Lim!