A Certain Scientific Accelerator

When the city’s deadliest esper is forced to protect the girl who holds its darkest secret, chaos erupts.

In the neon‑lit sprawl of Academy City, the hierarchy of espers is absolute, and at its apex sits Accelerator, the unrivaled Level 5 whose reality‑bending vectors once made him a living weapon. After a brutal brain injury leaves him scarred and his powers dulled, he clings to a fragile humanity through his devotion to Last Order, a mysterious girl who embodies the city’s most secretive project. When a shadowy operative from the anti‑skill faction—an underground militia bent on exploiting the city’s darkest experiments—targets Last Order, Accelerator is dragged back into the underbelly he tried to abandon. Reluctant protector and self‑styled villain, he must navigate a web of conspiracies that pits the official peacekeepers against rogue scientists, all while battling his own lingering trauma. The stakes rise as the conspirators aim to weaponize the “Sisters,” a group of cloned girls linked to Last Order, threatening to plunge Academy City into chaos. Forced to confront both external threats and his inner demons, Accelerator’s journey becomes a brutal ballet of kinetic fury and reluctant heroism, proving that even the most hardened anti‑hero can find a cause worth fighting for.

This spin-off follows a morally ambiguous anti-hero who brutally dismantles a conspiracy exploiting cloned children, featuring intense supernatural violence and dark themes of institutional abuse. While the protagonist protects a young girl, his methods are ruthless and the show doesn't shy away from showing the visceral consequences of his powers or the trauma inflicted on child victims.