Suletta Mercury leaves her planet and enters the Asticassia School of Technology at the behest of her mother. There, right and wrong are determined through duels between students, and the top-ranking duelist will receive Miorine Rembran as their fiancée—this prize being decided by Miorine's father. When Guel Jeturk, the best pilot in school and Miorine's current fiancé, demands that his betrothed move in with him, Suletta disapproves, so Guel challenges her. Although she emerges as champion, Suletta is subsequently detained on suspicion of piloting a forbidden type of mobile suit—a GUND-ARM, or Gundam—which results in her victory being voided. Miorine refuses to accept any more injustices and proposes another duel with even higher stakes. Now, Suletta must triumph a second time, otherwise she will be expelled and the Gundam Aerial that means so much to her will be destroyed.

In a post-apocalyptic world overrun by alien-crafted Machine Lifeforms, humanity is preparing for its last stand. Forced to retreat to the Moon for safety, humans are pinning their hopes on a group of man-made androids known as YoRHa soldiers. Led by the all-purpose battle android YoRHa 2-gou B-gata 2B, the group will fight to take control of the Earth back from its invaders. As war against the machines rages on, the YoRHa slowly begin to see the first shards of truth underlying the brutal conflict. Facing the harsh reality before her, the unwavering warrior 2B starts to question her very existence and just how much she must sacrifice for the sake of humanity.

In the 71st year of the True Era, humans have successfully expanded into space and have started living in independent galactic colonies. The world itself is split between two major nations: the Atlantic Rim United States (ARUS) and the Dorssia Military Pact Federation (Dorssia)—superpowers that wage war against each other on Earth and far into outer space. In this war-torn era, a third faction comprised of Japan and Islands of the Oceanian Republic (JIOR), reside peacefully and prosper economically, maintaining neutrality between themselves and their militant neighbors. Kakumeiki Valvrave commences in an outer space JIOR colony, where 17-year-old Haruto Tokishima's peaceful life is turned upside down as a sudden Dorssian fleet breaches the neutral colony. Their objective is to seize the Valvraves: powerful, but rumored mechanized weapons hidden deep within Haruto's school, Sakimori Academy. In the ensuing chaos, Haruto stumbles upon one of the targeted Valvraves. With his friends' lives in peril, Haruto enters the mecha and seals a contract for its power in exchange for his humanity. With the aid of L-elf—an enigmatic Dorssian agent and gifted strategist—Haruto and the Valvrave initiate a revolution to liberate the world.

It has always been the aspiration of the Central Tanegashima High School Robotics Research Club to complete the GunPro1, a fully functioning giant robot. For years, the members of the club have contributed to its progress and it is now Akiho Senomiya's goal to finally make the dream of all the past club members become a reality. However, things are not as easy as they seem as the club lacks the funding for such a huge endeavor. Aside from that, the only other club member, Kaito Yashio, shows no interest in assisting his childhood friend and instead indulges in playing mecha-fighting games on his PokeCom. As Kaito is in the middle of wasting his days, he receives an indecipherable message and hears a voice that seems to be drowned out by the noise of static. He searches for the source, only to realize that it came from Airi Yukifune, an AI which only exists within the augmented reality system accessible via the PokeCom. Robotic;Notes follows the story of Kaito as he discovers a peculiar report in Airi's database, one that would have disastrous consequences in the future.