本作是该公司于2003年2月28日所推出的作品Muv-Luv（マブラヴ）的续篇。
“Muv-Luv”整部作品主体共分为三个篇章，分别是EXTRA、UNLIMITED和ALTERNATIVE；由于游戏制作上的时间问题，âge决定先发售包含EXTRA&UNLIMITED的Muv-Luv，而第三部分ALTERNATIVE（即本作Alternative）则于日后制作完成再行推出。

Muv-Luv (マブラヴ Mabu Ravu?) is a Japanese visual novel developed by âge and originally released as an adult game for the PC on February 28, 2003. Subsequent versions with the adult content removed were sold for the PC, Xbox 360 and PlayStation 3. Consisting of two parts, Muv-Luv Extra (マブラヴ エクストラ Mabu Ravu Ekusutora?) and Muv-Luv Unlimited (マブラヴ アンリミテッド Mabu Ravu Anrimiteddo?), the gameplay in Muv-Luv follows a linear plot line, which offers pre-determined scenarios and courses of interaction, and focuses on the differing scenarios of the female main characters. Muv-Luv was followed by a sequel, Muv-Luv Alternative (マブラヴ オルタネイティヴ Mabu Ravu Orutaneitivu?), which was released for the PC on April 24, 2006 and follows the storyline of Muv-Luv Unlimited. Two fandiscs were also released, Muv-Luv Supplement (マブラヴ サプリメント Mabu Ravu Sapurimento?) and Muv-Luv Altered Fable (オルタード ALTERED FABLE Mabu Ravu Orutādo Feiburu?), containing alternate scenarios, short stories, computer wallpapers, and audio dramas.

Muv-Luv has also made the transition to other media. Three manga series based on the games were published by MediaWorks and later ASCII Media Works and serialized in the manga magazine Dengeki Daioh. Shueisha published a seven volume novel series based on Muv-Luv and Muv-Luv Alternative while Enterbrain published a side-story novel series, Muv-Luv Alternative: Total Eclipse in its Tech Gian magazine and follows a new cast of characters. A modified version Total Eclipse has also been adapted into the manga format by ASCII Media Works as well as an anime series which began airing on July 2, 2012, and licensed by Crunchyroll.

様々なメディア展開がされ、今なお根強い人気を誇る「君が望む永遠」がリニューアルされて再登場。

新たな演出効果の追加や、新規演出で再収録される“if”シナリオ「君が望む第一章」、OVAの原作シナリオである遙のアフターストーリーに加え、新たに水月、茜のアフターストーリーも加えた“第三章”となる追加シナリオを収録。もちろんグラフィックは既存ＣＧのほとんどがリファインされ、新規シナリオの追加に伴い描き下ろしＣＧも追加されている。