Black Bullet

In a world besieged by the Gastrea, a parasitic virus that mutates its hosts into monstrous creatures, humanity is forced to live behind colossal monoliths of Varaniun, a metal that repels the terrifying threat. Amidst this precarious existence, a specialized agency emerges, pairing "Promoters" – agents with combat training – with "Initiators" – young girls infected with the Gastrea virus, granting them superhuman abilities. This unlikely duo forms the frontline against the encroaching darkness. As the Gastrea relentlessly assault their fragile sanctuary, a young Promoter and his spirited Initiator find themselves entangled in a deeper conspiracy, one that threatens to unravel the very foundations of their protected society and expose the harsh truths behind their desperate fight for survival.

✦ AI-drafted summary