Seraph of the End: Vampire Reign

When humanity’s last children become weapons, revenge becomes the deadliest weapon of all.

In a world where a mysterious plague wipes out everyone over thirteen, the night belongs to vampires who surface from the shadows, offering protection to the remaining children in exchange for their blood. Orphaned youths Yūichirō and Mikael are ripped from their makeshift family and thrust into a brutal regime where they’re treated as livestock. Mikael’s desperate bid to escape ends in tragedy, leaving Yūichirō as the sole survivor, rescued by the Moon Demon Company—a covert unit of the Japanese Imperial Demon Army sworn to eradicate the bloodthirsty overlords. Fast‑forward several years: Yūichirō, now a hardened soldier, wields a cursed sword and a burning vendetta against the vampires who massacred his loved ones. As he infiltrates enemy strongholds and uncovers the dark secrets behind the virus, he must grapple with the cost of vengeance, the fragile bonds of his comrades, and the lingering pull of his lost friend Mikael, who now walks a treacherous line between humanity and monster.

A dark post-apocalyptic action series where children are farmed by vampires and trained as soldiers; expect heavy stylized gore, traumatic backstories, and themes of exploitation. While aimed at teens, the intensity of the violence and the premise of systemic child abuse make it best suited for older adolescents.