For the agent known as "Twilight," no order is too tall if it is for the sake of peace. Operating as Westalis' master spy, Twilight works tirelessly to prevent extremists from sparking a war with neighboring country Ostania. For his latest mission, he must investigate Ostanian politician Donovan Desmond by infiltrating his son's school: the prestigious Eden Academy. Thus, the agent faces the most difficult task of his career: get married, have a child, and play family. Twilight, or "Loid Forger," quickly adopts the unassuming orphan Anya to play the role of a six-year-old daughter and prospective Eden Academy student. For a wife, he comes across Yor Briar, an absent-minded office worker who needs a pretend partner of her own to impress her friends. However, Loid is not the only one with a hidden nature. Yor moonlights as the lethal assassin "Thorn Princess." For her, marrying Loid creates the perfect cover. Meanwhile, Anya is not the ordinary girl she appears to be; she is an esper, the product of secret experiments that allow her to read minds. Although she uncovers their true identities, Anya is thrilled that her new parents are cool secret agents! She would never tell them, of course. That would ruin the fun. Under the guise of "The Forgers," the spy, the assassin, and the esper must act as a family while carrying out their own agendas. Although these liars and misfits are only playing parts, they soon find that family is about far more than blood relations.

The story begins with the peaceful daily life of schoolgirls—which suddenly breaks down when former schoolmates become zombies. The story follows the actions taken by the girls left behind on the school roof. A short special edit of the OVA, titled Alice in Deadly School Tokubetsu-ban: Ima, Stage no Maku ga Agaru (Alice in Deadly School Special Edit -The Stage Begins-), was broadcasted on January 4, 2021 as part of the New Year's special.

One last heist. That's what they all say, right? Just one final score, and everyone can retire and take up fishing. Thing is, the jails are filled with super villains who thought the same thing, and got busted. But the Heat's in a jam. He's run up the kind of gambling debt that - if he can't pay it back in cash - will be paid in blood. Nobody wants to see the most beloved supercrook of all time rubbed out by the mob - especially his biggest fan, Johnny Bolt. And Johnny's got a plan to help the Heat and make all his buddies disgustingly rich at the same time. Unfortunately for Johnny's recruits, they have to head to Spain and rob the world's most notorious super villain blind. And that's where things get tricky.

Fifty years ago, horrific creatures dubbed as the "enemies of humanity" suddenly appeared around the world. To combat these threats, teenagers gifted with supernatural abilities called "Talents"—such as pyrokinesis and time travel—hone their powers at an academy on a secluded island. Nanao Nakajima, however, is quite different from the others on the island: he has no Talent. With many "Talented" teenagers around him, Nanao is often a target for bullying, but even so, he still strives to complete his training. Soon after, two transfer students, the mysterious Kyouya Onodera and the mind-reading Nana Hiiragi, join the class. But just as everyone starts blending as comrades-in-arms, mysterious disappearances begin to threaten the class's entire foundation.