While Nezha attempts to atone for his misdeeds, the battle against Sword Art Online 's second-floor boss begins! Kirito's uneasy alliance with the other front-runners seems to be holding, but what will happen when the floor boss corners them? Can Nezha rise to the occasion and seize a hero's prize? Kiseki Himura is the artist behind the manga adaptation of Sword Art Online: Progressive. Reki Kawahara is an award winning author best known for his light novel series, Sword Art Online and Accel World.