World of 2138

The World of 2138 refers to the name of world in which main protagonist of Overlord, Suzuki Satoru, or commonly known Ainz Ooal Gown originated from. The setting takes place in the real world but a hundred years into the far future.

Background
In the World of 2138, the world has become a desolate dystopia in which the environment has become uninhabitable for humans. The surface of the Earth has become hopelessly polluted, the sky hidden behind black smog. The air is so contaminated that it is necessary to wear a breath masking when traveling outside.

Trivia

 * An Overlord Special pertaining to the World of 2138 was released with volume three of the manga series.