Mercenaries and how/when to hire them

Question

I read an article on the Atlantica front page about the Puppeteer Rin. I found one part very interesting:

Rin can be recruited during the Bunraku Festival event, June 27, 2012 through July 26, 2012.

I have not played games where the recruitment of a unit (mercenary in this case) is dependent on real world time. Is there a list of the various known mercs in Atlantica with

• times of the year that they can be hired
• cost or other requirements to hire
• difficulty to acquire for a new or beginning character

Answer 1

Recruitment

Rin can be recruited during the Bunraku Festival event, June 27, 2012 through July 26, 2012. No additional information beyond this is known at the moment.

Is what Nexon said. And of what I've seen so far, it's the only event based merc.