Little, Brown Book Group No Game No Life, Vol. 11 (light novel)

Sora, Shiro, Steph, Jibril, and Emir-Eins somehow find themselves in a completely unfamiliar place: Spratul, home of the ninth-ranked Ixseed, the Fairy race. Next thing they know, a Fairy named Foeniculum shows up and announces that unless they partner up as couples, they’ll be trapped there forever… Oh, and the whole thing is being livestreamed. To emerge victorious, Sora must choose one of the four ladies as his girlfriend—but what if they simply pair off with one another and leave him in the lurch?!