No Game No Life Season 1 Episode 8

Fake End

The siblings pay a visit to the Werebeasts' embassy in Elkia, and expose the tricks that they use to outwit their opponents. Sora bets all of Imanity's remaining territory, along with the lives of all its citizens in an all-or-nothing game against the Werebeasts. However, while awaiting an answer from them, Sora mysteriously disappears without a trace, and Shiro realizes that she is the only one who remembers him.