About the book: 2018 / Sora and Shiro are brother and sister. They are hikikomori, they do not work or study anywhere, but they have become famous throughout the Internet thanks to their skill in games. Once in Disboard - a world where everything is decided through games - they challenged the Eastern Union, the third largest power in the world, the country of beastwolves, demanding the mainland territories of the Union and thereby putting the fate of all humanity at stake. But right before the game, Sora, having left his sister incomprehensible parting words, suddenly disappeared somewhere. 「 」, a single player in two bodies, found himself divided... A dangerous, like walking on a tightrope, battle with the beastwolf race is coming!