Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Unlock a new episode, as well as Laharl, Etna, Flonne, and Sicily from Disgaea D2 as playable characters. Go to the DLC Shop and then the Dimension Guide to access this content. This content is free for those who have purchased the Season Pass.