加速世界
Reki Kawahara wrote the first volume in 2001 as a competition entry for the 2002 ASCII Media Works , but refrained from submitting it as he had exceeded the page limit; he instead published it as a web novel under the pseudonym Fumio Kunori. Over time, he added three further main arcs and several short stories, which like the first arc Aincrad, were later adapted into the light novels. In 2008, he participated in the competition again by writing "Accel World", this time winning the Grand Prize. Aside from "Accel World", he was requested to get his earlier work, "Sword Art Online", published by ASCII Media Works. He agreed and withdrew his web novel versions.