Ep. 1: Undefeated siblings accept a challenge to enter a world governed by games.
Aired on April 9, 2014

Sora and Shiro, known online as the undefeated duo Blank, are hikikomori ostracized in reality. They defeat Tet in chess and accept his offer to travel to Disboard, a world where the Ten Pledges forbid violence and enforce game outcomes. Believing it to be a joke, they are summoned to Elkia, a human nation. There, Sora wins money from a woman at poker through deception. Afterward, the siblings rest at an inn and determine that their primary objective is to secure a permanent home for themselves in this new reality.
Episodes
- Ep. 1 · Undefeated siblings accept a challenge to enter a world governed by games.
- Ep. 2 · Stephanie confronts Sora over Kurami's cheating, leading to a romantic pledge and their move to Elkia.
- Ep. 3 · Sora exposes Kurami's magic and wins a strategic war simulator game against her.
- Ep. 4 · Sora and Shiro crowned rulers of Elkia after Kurami's defeat and Tet's challenge.
- Ep. 5 · Sora and Shiro delegate Elkia duties to Stephanie while researching national conquest strategies.