Where to Watch Black Bullet Free & Legally

In a world ravaged by the "Gastrea" virus, humanity's last stronghold lies within the fortified walls of Monolith, constructed from the only substance capable of repelling the monstrous creations. The virus's parasitic nature has infected humans, transforming them into terrifying beasts. To counter this apocalyptic threat, the Tendo Civil Security has created an elite force known as "Cursed Children," females imbued with superhuman abilities due to their unique virus-infused physiology.

These powerful young Initiators are paired with skilled Promoters, who serve as their mentors and guardians. Together, they form formidable teams, tasked with containing the Gastrea menace and protecting humanity's fragile existence. The story follows the unyielding partnership of Enju Aihara, a fearless Initiator, and Satomi Rentaro, a battle-hardened Promoter, as they battle to reclaim their hometown of Tokyo from the clutches of the monstrous Gastrea.