Humans need new technologies to travel to outer space and migrate to other planets, so they create a new species called Felix by manipulating genes. One is to form the World Integrated Government to gather resources and suppress antis. In order to avoid extinction, mankind creates two plans to escape from Earth. The Earth only has a hundred years left because of the damage. As a result, wars and terrorism occur all over the world. In the far future, a huge mass of energy suddenly appears near Mars, which causes unusual natural phenomena. An English version by MangaGamer was released on Steam on January 30, 2015. A manga adaptation illustrated by Takeshi Moriki was serialized in Ichijinsha's Comic Rex magazine. Other games by Minori include Wind: A Breath of Heart and Ef: A Fairy Tale of the Two.

An updated adult patch of the game titled Eden* Plus+Mosaic was released on the same day. Eden* is a Japanese visual novel by Minori for Windows playable as a DVD and was released on September 18, 2009, with a rating for everyone.