New details about Square Enix’s latest Nintendo DS RPG, Kingdom Hearts 358/2 Days, have been released through a new official website for the game.

It is currently in development by the H.A.N.D. team that created Final Fantasy Fables: Chocobo Tales on the DS and Chocobo's Dungeon on the Wii.

The story revolves around how Roxas joined 'Organization XIII', and how he was apparently born from Sora during his year-long sleep between Kingdom Hearts: Chain of Memories and Kingdom Hearts II. Therefore, it is safe to assume that this game takes place between Chain of Memories and Kingdom Hearts II in the timeline.

According to the official website the title is pronounced ‘Kingdom Hearts: Three-Five-Eight Days Over Two’, and no details have been announced as to what the title refers to other than that the game will show the day-to-day life of Roxas in Organization XIII.

The game will feature all thirteen members of the team and apparently a mysterious female character as a new fourteenth member, who will be crucial to the story.

It has been previously stated that the game will feature a 4-player cooperative multiplayer mode, although one separate to the main single player quest. There are still no final details about this however.

The game is scheduled for a 2008 release in Japan. No US or European date has been mentioned as yet, although the developers have said they do plan to release it outside of Japan.