Hachiman Hikigaya is an apathetic high school student with narcissistic and semi-nihilistic tendencies. He firmly believes that joyful youth is nothing but a farce, and everyone who says otherwise is just lying to themselves. In a novel punishment for writing an essay mocking modern social relationships, Hachiman's teacher forces him to join the Volunteer Service Club, a club that aims to extend a helping hand to any student who seeks their support in achieving their goals. With the only other club member being the beautiful ice queen Yukino Yukinoshita, Hachiman finds himself on the front line of other people's problems—a place he never dreamed he would be. As Hachiman and Yukino use their wits to solve many students' problems, will Hachiman's rotten view of society prove to be a hindrance or a tool he can use to his advantage? [Written by MAL Rewrite]

Mikoto Misaka and her friends are back, investigating rumors across Academy City. Soon, Mikoto discovers something terrifying: horrific experiments are taking place throughout the city, involving the murder of thousands of espers. Moreover, these espers are far from just ordinary people: they are clones of Mikoto herself. Feeling responsible for their treatment, she sets off to put an end to the experiments; however, the forces opposing her are much more dangerous than she anticipated, and Mikoto finds herself up against some of the most powerful espers imaginable. Toaru Kagaku no Railgun S continues the story of the Railgun as she desperately fights to put an end to the inhuman experiments that she believes she helped cause, her life dragged deep into despair in the process. There's never a dull moment in Academy City, but no one ever said all of them would be pleasant. [Written by MAL Rewrite]

The world of dreams can be an incredible window into the psyche, showing one's deepest desires, aspirations, and repressed memories. One hopeful tech lab has been developing the "DC Mini," a device with the power to delve into the dreams of others. Atsuko Chiba and Kosaku Tokita have been tirelessly working to develop this technology with the hopes of using it to deeply explore patients' minds and help cure them of their psychological disorders.

However, having access to the deepest corners of a person's mind comes with a tremendous responsibility. In the wrong hands, the DC Mini could be used as a form of psychological terrorism and cause mental breakdowns in the minds of targets. When this technology is stolen and people around them start acting strangely, Atsuko and Kosaku know they have a serious problem on their hands. Enlisting the help of Officer Konakawa, who has been receiving this experimental therapy, they search both the real and dream worlds for their mental terrorist.

[Written by MAL Rewrite]

What was the tragedy that decided the fates of Char Aznable, the man later nicknamed the "Red Comet" as an ace pilot of the Zeon forces, and his sister Sayla Mass? The two siblings' journeys, brought on by the sudden death of their father Zeon Zum Deikun who was a leader of the Spacenoids, are depicted in the four episodes of "Chronicle of Char and Sayla." The Zabi family who seize control of Side 3 and lead the Principality of Zeon, the early days of many renowned Zeon ace pilots who later fight in the One Year War, the secrets of mobile suit development, conflicts with the Earth Federation Forces, and the road leading to the outbreak of war—all will be revealed. (Source: Official Website) Note: A re-edited TV version of the six OVAs released from 2015 through 2018.