In the wake of Eren Yeager's cataclysmic actions, his friends and former enemies form an alliance against his genocidal rampage. Though once bitter foes, Armin Arlert, Mikasa Ackerman, and the remaining members of the Scout Regiment join forces with Reiner Braun and the survivors of the Marleyan military. Their meager united front sets out on a mission to stop Eren's wrath and—if possible—save their old comrade in the process. As Eren pushes forward at any cost, he battles his own internal turmoil. Although he feels immense remorse over his horrific invasion, Eren believes he harbors noble intentions: he believes the path ahead is the only way to save his friends and, to a greater extent, his people. The opposing battalions spiral toward an inevitable final clash that may claim the lives of millions. Though they face an army of monsters beyond anything they could have previously imagined, Mikasa, Armin, and their allies stand brave in the face of certain doom.

For as long as he can remember, Minoru Kagenou has been fixated on becoming as strong as possible, which has led him to undertake all kinds of rigorous training. This wish, however, does not stem from a desire to be recognized by others; rather, Minoru does everything he can to blend in with the crowd. So, while pretending to be a completely average student during the day, he arms himself with a crowbar and ruthlessly thrashes local biker gangs at night. Yet when Minoru finds himself in a truck accident, his ambitions seemingly come to a sudden end. In his final moments, he laments his powerlessness—no matter how much he trained, there was nothing he could do to overcome his human limitations. But instead of dying, Minoru reawakens as Cid, the second child of the noble Kagenou family, in another world—one where magic is commonplace. With the power he so desired finally within his grasp, he dons the moniker "Shadow" and establishes Shadow Garden: a group whose sole purpose is to combat the enigmatic Cult of Diablos, an organization born from Cid's imagination. However, as Shadow Garden grows in both membership and influence, it becomes increasingly apparent that the Cult of Diablos is not as fictional as Cid had intended.

When Kodaka Hasegawa finds out that he will be transferring to a new school, he is determined to make a positive impression, and maybe even some friends. However, Kodaka discovers he is out of luck when he immediately gets labeled as a violent delinquent due to his blond hair and intimidating expression. Although a month has passed, Kodaka is still alone thanks to his notorious reputation. However, his life begins to change when he finds fellow loner Yozora Mikazuki talking to her imaginary friend in an empty classroom. After sharing stories of their lonely high school life, Kodaka and Yozora decide to overcome the difficulties of making friends together by starting the Neighbor's Club. Created for people who don't have friends, daily activities involve learning social skills and how to fit in, which will hopefully allow them to make friends. Joined by the eroge-loving Sena Kashiwazaki, and other eccentric outcasts, Kodaka may finally have managed to find people he can call friends, in this club filled with hilarious oddballs. [Written by MAL Rewrite]

Yuuichirou Hyakuya is finally reunited with his childhood friend Mikaela Hyakuya, whom he had long presumed to be dead. Upon their reunion, however, he discovers that Mikaela has been turned into a vampire. Determined to help his friend, Yuuichirou vows to get stronger so that he can protect Mikaela as well as the comrades in the Moon Demon Company. Kureto Hiiragi receives information that a large group of vampires will be gathering in Nagoya, preparing for their assault on the Imperial Demon Army's main forces in Tokyo. Led by Guren Ichinose, Yuuichirou's team is one of many selected to intercept and eliminate the vampire nobles. With the Nagoya mission quickly approaching, the members of Shinoa squad continue to work towards fully mastering their weapons, while learning how to improve their teamwork. Yuuichirou must gain the power he needs to slay the nobles and save his best friend, before he succumbs to the demon of the Cursed Gear. [Written by MAL Rewrite]