Arado is a student of School, which is a DC pilot training program. His class number is Bronzo 28. He&#039;s a Sergeant Major.    He&#039;s very positive, and always flirts with Seolla, which annoys her. He&#039;s part of the Boosted Children, and doesn&#039;t have any memories prior to joining The School. He&#039;s a very good pilot, though he doesn&#039;t get a chance to show off his skills much. They forced him to use mostly long ranged machines, when melee combat is his forte.    He also has a large appetite, and even says that Kusuha&#039;s health drink is delicious. 

With many of its central personnel lost in the war, the Earth Federation Government is forced to rebuild, and Brian Midcrid, president of the Unified Colonies, takes the position of its president. During an emergency session of the Federation Diet, he publicly acknowledges the existence of extraterrestials, and reveals the events of the L5 campaign to the masses in what will later come to be called the "Tokyo Declaration". He goes on to state that these aliens pose a serious threat to humanity.<br><br>
(Source: Crunchyroll)

Dr. Jurgen of DC developed a global defense system to combat potential alien threats. This system has two elements. First is the VTX-001 Vartoul unmanned anti alien PT. Governing these drones is the ODE worldwide network system. However, this system has a noteworthy secret. A living human is needed to control the ODE core. Furthermore, the ODE core needs human organs to support itself. At the present day, the drone have gone on a mass abduction spree. Kyosuke and co has been sent in to take care of the problem.
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(Source: Anime News Network)

Arado Balanga