Season 1
Haruto Tokishima, a student from Sakimori High School living on the sphere's "Module 77", discovers a mysterious and powerful mecha called Valvrave (ヴァルヴレイヴ Varuvureivu?) and uses it to defend the module from a Dorssian invasion that takes over the rest of JIOR. Once they learn that both Dorssia and the ARUS intend to claim the Valvrave for themselves, with no concern with their lives, the students of Sakimori High declare Module 77 an independent state and abandon JIOR territory. Soon after, several other Valvraves are found inside the school and some of them are claimed by other students who join Haruto's fight to protect it. Once Haruto is approached by L-elf Karlstein, a Dorssian spy who claims to have the intentions to one day stage a revolution in his own country, both join forces in an unlikely alliance to secure the sovereignty of their newfound nation declared and officially recognized as New JIOR.
Episodes
1 Revolutionary Transfer Student Apr 12, 2013 
2 Beyond 666 Apr 19, 2013 
3 L-Elf's Prophecy Apr 26, 2013 
4 The Valvrave is the Hostage May 3, 2013 
5 The Sakimori Academy Sings May 10, 2013 
6 Saki's Comeback May 17, 2013 
7 Haruto Under the Ruins May 24, 2013 
8 Princess of Light May 31, 2013 
9 Dog and Thunder Jun 7, 2013 
10 Campaign Promise of Love Jun 14, 2013 
11 Military Tribunal #54 Jun 21, 2013 
12 The Heretic Activates Jun 28, 2013 
13 A Cursed Bond Oct 11, 2013 
14 Siblings of the Atmosphere Oct 18, 2013 
15 Return to Karlstein Oct 25, 2013 
16 Marie Set Free Nov 1, 2013 
17 The Rune Abyss Nov 8, 2013 
18 A Father's Wish Nov 15, 2013 
19 Sadness is Like the Falling Snow Nov 22, 2013 
20 The Kamitsuki Exposed Nov 29, 2013 
21 The Cost of Lies Dec 6, 2013 
22 Fist of the Moon Dec 13, 2013 
23 The Operation to Retake Module 77 Dec 20, 2013 
24 Revolution to the Future Dec 27, 2013