Ling Cage is a oNA (web) anime, produced by YHKT Entertainment.

About the production: the story comes from an original script, there are 6 episodes of about 37 minutes and its current status is "finished".

Its main genres are action, drama, horror, mecha, mystery, sci-fi and thriller, with themes such as Dystopian, Environmental, Post-Apocalyptic and Military.

On AniList, Ling Cage has an average score of 70%, a good score, and appears on 3,582 users' lists.

The franchise continues in or follows from: Ling Long Middle Chapter.

In the not-too-distant future, the human world has long been overpopulated. Humanity marched to the stars in search of a new home, and just as this was going on, the moon's alignment caused massive earthquakes to ripple across the world, lasting several decades. Humanity was demolished. When the land finally recovered, humanity reemerged to face this strange yet familiar world. Will we, who once lorded over this domain, still remain the masters of this world? (Source: BiliBili)

Official synopsis from AniList.