No Game, No Life (2014)

Synopsis

Bored with life and considering the real world to be just a "boring game," Sora and Shiro—a pair of smart siblings who rarely leave the house—have retreated into their own fantasy world filled with video games. However, one day they are called to another world by a boy who calls himself "God," and their abilities will soon be tested to the limit! Now, not only their fate — but the fate of the entire human race — will be determined by a series of games that may just be the most difficult these two super geniuses have ever faced!