True Calendar (T.C.) 71 - A new age where 70% of the human population lives in space. Haruto Tokishima lived an ordinary life as a high school student in the division known as 'Module 77'-until the Dorssian military begins their sudden invasion!
Enraged by his loss, Haruto uses the Valvrave to seek vengenance against the Dorssian Military. But an equally furious A-drie stands up against the attack and quickly overwhelms the inexperienced fighter.
L-elf is held in interrogation but he manages to escape. Haruto makes a triumphant return and is considered a hero by the masses for taking on the Dorssian military. Haruto has a meeting with Senator Figaro.
L-elf tells Haruto to make a pact with him. ARUS kidnap Haruto and attempt to escape without saving the students of Sakimori. Shoko imparts the plans of ARUS to the student council. Not willing to depend on others, Sakimori students declare independence.
Since Shoko declared independence, the students of Sakimori have been leading a carefree lifestyle. All of a sudden, the power goes out. Finally, the students manage to turn the power back on, and they broadcast a video of themselves singing a song.
When Saki got on Valvrave IV, she took the same ability as Haruto. She causes a confusion using her ability. Soon after, Dorssia fleets begin to attack against Sakimori.
L-elf hands Shoko papers which include a plan for the military development and territorial expansion of JIOR. A-drei, Q-vier and H-neun interfere and Rukino tries to stop them. Haruto possesses L-elf to use his Valvrave. Will he be able to help Rukino?
Students of Sakimori are mourning for Aina. L-elf is held prisoner by the students, and he recalls the time he first met Lieselotte. Sakimori is attacked by the Dorssians. Haruto and Saki go out to battle against them, trusting L-elf's tactical advices.
Module 77 is headed to the Moon and the students have begun military drills. Thunder has sworn revenge but he is put in solitary confinement. Thunder and Inuzuka decide to pilot their own Valvraves and help Haruto and Saki battle against the Dorssians.
Not feeling fully qualified for her position, the student teacher Rion Nanami proposes that JIOR should hold an election for a Prime Minister. Shoko decides to run in the election. In the meantime, the interval between Haruto's attacks is getting shorter.
Module 77 is headed to the Moon while the students are appointed as cabinet ministers. Akira finally speaks to Shoko and it is revealed that she is Satomi's sister. Module 77 is attacked by the Dorssians and Shoko's father is held hostage by Wartenberg.
Haruto proposes to Saki, since he feels guilty about what happened between them. The school is under Dorssian attack. Haruto asks L-elf to drive the Dorrsians out. Shoko attempts to rescue Akira who refuses to go outside. Cain confronts L-elf.
Valvrave II, activated by Cain, easily overpowers Haruto and L-elf. Pino and Plu touch during the battle, causing both Valvraves go out of control, and Cain withdraws. Although they have weathered the crisis, Haruto is disturbed by the phenomenon.
With Earth fast approaching, only Akira, the former shut-in, has yet to become friends with the others. Satomi is over-protective of his little sister to atone for his past actions, but even that gets on her nerves. Their plan appears to be going...
After crashing down to Earth, the students find themselves stranded in Dorssian territory, far from their targeted landing in JIOR. In order to infiltrate the enemy forces, L-elf uses his familiarity with his surroundings to devise a plan, however...
As Marie heals from L-elf's gunshot, it becomes quickly apparent that she has a mysterious history with Valvrave Unit 01. With A-drei leading the Dorssian troops, L-elf finds his plan compromised, and Marie wrestles with losing precious memories.
After Marie pilots Unit 01, the sacrifices and consequences that come with piloting the powerful Valvrave become clear. H-neun begins to act on his suspicions of Captain Cain to protect X-eins, and Haruto must face his nightmares or give up piloting.
The students devise a plan to rescue the JIORans held captive in Dorssiana, and Haruto finds that he will reunite with his somewhat estranged father. As the fateful meeting draws nearer, L-elf receives intel that prompts him to stage a reunion of his own.
L-elf is finally reunited with Lieselotte, however the students find themselves surrounded with Captain Cain having predicted their every move. Saki Rukino also finds herself cornered, and Haruto learns the surprising truth about the Magiuses.
The students arrive at Module 77 to a hero's welcome, complete with in-depth press coverage! Haruto and L-elf each struggle in their own way to come to terms with recent events. Meanwhile, Shoko has been fighting as well on JIOR's political battlefield.
ARUS Golden News is broadcasting the shocking events in Module 77's hangar. Dorssian chancellor declares that the residents of Module 77 are actually monsters that drain human lives. Shoko is devastated to find out that Haruto has been lying to her.
Captain Cain is tasked with the extermination of the Class 7 Special Hazard Organisms. Haruto and L-elf are on a site of a gravity reactor explosion. L-elf tries to convince Haruto that he was abandoned by his friends, but they end up blaming each other.
L-elf tries to infiltrate the enemy position but is caught by A-drei. A-drei wants him to help take out Captain Cain. In the meantime, Haruto comes back, but his memories are fading away as he continues to fight in order to expose the lies of the world.