The game comes directly from Nintendo eShop, you will be able to go online, get updates etc.
After setup process the game will be available to launch on your own account, just as any other game or app you purchased directly in Nintendo eShop.
In a war against the Fell Dragon, four kingdoms worked together with heroes from other worlds to seal away this great evil. One-thousand years later, this seal has weakened and the Fell Dragon is about to reawaken. As a Divine Dragon, use rich strategies and robust customization to meet your destiny—to collect 12 Emblem Rings and bring peace back to the Continent of Elyos.