The Disney Magic Castle: My Happy Life 2 release in 2015 November in Japan on 3DS and in this October in North America and Europe.
The Disney titles are alway so populer in Japan and Bandai Namco now announced a new campaign again with the game!
If you buy the Disney Magic Castle: My Happy Life 2 from December 3, 2016 in Japan you will get it with a mini, white should bag which is a pouch case also. You can carry with it your 3DS and some of your goods. The bag will be available only in limited quantity.
On the official website you can find soon the store list where you can buy the game with this special gift.