Nocturnal Sonata, version 2.9, adds a brand new unique player character to the mix. In Sword of the New World, players can control their own characters, their "family," or add in storyline characters called unique characters once certain conditions are met. This update adds Claire, the small girl who can pack an insane punch. Claire comes with the ability to hold a two handed weapon with one hand, and her specialty is... well... cannons. Adding her to your party, however, requires you to earn the trust of one of the game's NPCs and Claire's adopted brother, Claude.
The update also includes the new raid instance, The Secret Tower (as shown above), as well as a new buyable dungeon, Bahamar Ancient Dungeon. For the full details, check out the patch notes available at the Sword of the New World main site.