In a post-apocalyptic world where half of the world's population have fallen victim to demon zombies, a rise or warriors who're Angel Blessed, Angels who've descended upon the human world to bless humans with blessed weapons and abilities and a rare case whereas an angel stay with the human to be a familiar, in an otherwise non killable demon zombies whoms't a single bite from them makes a demon able to easily possess a human thus becoming one of them Schools dedicated to train warriors have become the battle front against demon zombies and with no age limit nurtured some of the best prodigies that will become the future leaders of the world