In the world of Disboard, everything is decided by games. And after rising to reign as the monarchs of the remnants of Disboard's humans, gamer siblings Sora and Shiro have now wagered the fate of every human being alive on the outcome of a game against the Eastern Union! But immediately after making this wager, Sora disappears, leaving only a cryptic message behind. "Blank," the legendary two-in-one gamer, has been torn asunder! What is Sora thinking? What will Shiro do? What will become of humanity? And what about the paradise of animal-girls?!

"Didn't I tell you? It's checkmate. You guys...were doomed long ago."

In the third volume of the bestselling alternate-world fantasy series, it's a risky showdown against the Werebeasts!