Sword Art Online Progressive Scherzo of Deep Night, Vol. 1 (Manga) (manga)

Nearly two months have passed since Kirito and Asuna found themselves trapped in the world of Aincrad. Now, they're making their way through the ruins-themed fifth floor, where all sorts of undead monsters-and player-killers-lurk in the shadows! The story of Sword Art Online continues in this brand-new series!