Well, supposedly he took Erza's place in the crystal tower...then again, since that part has only been strongly hinted at, I assume I can't state it as a fact that he saved Erza
Anyone read the bonus chapter yet? Besides being hilarious, it drew my attention to Kana...can't really say why
Although, she started off saying there's no boys, but then when she shouted there were three guys on a nearby table.