A teacher takes all aspects of life, word and culture in the most negative light possible.

Bored with life and considering the real world to be just a “crappy game,” savvy sibling shut-ins Sora and Shiro have withdrawn into their own fantasy world filled with video games. However, one day they find themselves summoned to another world by a boy who calls himself “God,” their abilities are about to be put to the ultimate test! Now not only their fates — but the fate of all of humanity — will be decided by a series of games that may just be the hardest these super-geniuses have ever faced!

The Kusaribe family is a family of sorcerers under the protection of the ‘Tree of Origins.’ Their princess, Hakaze Kusaribe, was the greatest sorceress of their family. But Samon Kusaribe, a member of their family seeking to resurrect the ‘Tree of World's End,’ a tree that opposes the ‘Tree of Origins’ and controls the power of destruction, stuffs her into a barrel, and banishes her to a deserted island.