It began in 1945, at the end of the Pacific War. Alien invaders filled the earth's Skies, and mankind was forced to confront an unprecedented threat. For the first time in human history, people of all cultures came together under one banner.
This war has now been raging for over fifty years. Countless lives have been lost, and the Japanese military is now forced to rely on young people such as Atsushi Hayami and his high school class, also known as Unit 5121. This new generation fearlessly struggles on with the aid of the HWT humanoid combat machines and the devastating PBE bomb.
(Source: Media Blasters)+ More
Characters & Voice Actors

Hayami, Atsushi
Main
Ishida, Akira
Japanese
Shibamura, Mai
Main
Okamura, Akemi
Japanese
Hara, Motoko
Supporting
Shinohara, Emi
Japanese
Higashihara, Nonomi
Supporting
Lee, Yong Sin
Korean
Katou, Matsuri
Supporting
Noda, Junko
Japanese
Kurusu, Ginga
Supporting
Shimura, Tomoyuki
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