While we have reported yesterday that Layton’s Mystery Journey: Katrielle and the Millionaires’ Conspiracy will launch for the Western 3DS on October. Nintendo has just updated the release date for the Korean 3DS release date as well.
In their press release (link), Nintendo and Level-5 have announced that the Korean version of the game will be released on 21 September 2017, ahead of the Western release.
Layton’s Mystery Journey: Katrielle and the Millionaires’ Conspiracy is currently out on Japanese 3DS and mobile. It will be released for Western 3DS on October 2017