Season 1
In the latter half of 21st century, humans leave the Earth and begin to live in space. In order to adapt to the environment in space and deal with the hostile aliens in Jupiter, genetically engineered children called "Princes" are artificially raised and trained to be pilots of armed robots "AHSMB (Advanced High Standard Multipurpose Battle Device). This is a story about one of the teenage "Princes", Hitachi O Izuru, who studies in an academic city Grandzehle.
Episodes
1 Sortie Apr 4, 2013 
2 Heroes Are Born Apr 11, 2013 
3 Surprise Attack Apr 18, 2013 
4 Loss Apr 25, 2013 
5 Operation: Infiltrate a Planetoid Base May 2, 2013 
6 Graduation May 9, 2013 
7 Stronghold of Lust May 16, 2013 
8 Battle of Ceres May 23, 2013 
9 Disclosure May 30, 2013 
10 The Hunter and the Hunted Jun 6, 2013 
11 Operation: Ares Jun 13, 2013 
12 Secret Mission Jun 20, 2013 
13 The Aloof Ace Jun 27, 2013 
14 AHSMB's Shadow Jul 11, 2013 
15 Defending Vesta Jul 18, 2013 
16 Your Hero Jul 25, 2013 
17 Defensive Battle at Cosmopolitan Academy (First Part) Aug 1, 2013 
18 Defensive Battle at Cosmopolitan Academy (Second Part) Aug 8, 2013 
19 Deep Recon Aug 15, 2013 
20 Genes of Destiny Aug 22, 2013 
21 Night before the Decisive Battle Aug 29, 2013 
22 Operation: Heaven's Gate Sep 5, 2013 
23 Alea Lacta Est Sep 12, 2013 
24 Flowers Falling in Space Sep 19, 2013