overview : A story of the bonds between those who fight, in a world pushed to its limits. On one of the countless parallel worlds that exist throughout spacetime, humanity has fought a decades long war against the BETA, hostile extraterrestrial invaders, using humanoid fighting machines called Tactical Surface Fighters. This is a story of how humanity lives and dies while on the brink of extinction...

First Air Date : Oct 07, 2021

Last Air Date : Dec 22, 2022

Runtime : 23m

Episodes : 24

Seasons : 1

Genre : Animation,Action & Adventure,Sci-Fi & Fantasy,

Companies : FLAGSHIP LINE, Yumeta Company, Graphinica, avex pictures, Fuji Television Network, Crunchyroll, Tencent, BS Fuji, dentsu, Bandai Namco Arts, Bandai Namco Music Live, aNCHOR

Countries : JP

Keywords : extraterrestrial technology, harem, alien, mecha, survival, conspiracy, combat, military, ecchi, anime, based on visual novel, other world, human extinction, genetic modification