Seraph of the End

One day, without warning, an unknown virus brought the world to ruin. Only children survived. Then vampires emerged from deep underground and brought those children under their rule. Yuichiro Hyakuya survived by offering his blood to the vampires, alongside Mikaela Hyakuya and other orphans with whom he shared a bond as close as family. Unable to endure being treated like livestock, Yuichiro attempts to escape to the outside world with Mikaela and the younger orphans, but… Four years later, Yuichiro Hyakuya joins the Moon Demon Company, the Japanese Imperial Demon Army's vampire extermination unit. He throws himself into battle against the fearsome vampires…!!