Ni no Kuni: Wrath of the White Witch has a new quest for players that completed the game. "The Great Sage of the Olden Days" quest will reveal the truth about the King of Moya when Oliver speaks to Mirant, the Great Sage, and answers questions using the Magic Master.
Level-5 also created new monster hunting quests. One has players subdue an enraged Inokka and the other has Oliver face a gigantic bird called Kacus (maybe Cacus?).
As usual, the Ni no Kuni downloadable content is free and also includes gems to power up Imagines, magical creatures Oliver can control in the game.