It looks like you're referring to . This is a spin-off light novel and anime series written by Keiichi Sigsawa (known for Kino's Journey ) and illustrated by Kouhaku Kuroboshi , rather than by the original SAO author Reki Kawahara.
It looks like you're referring to . This is a spin-off light novel and anime series written by Keiichi Sigsawa (known for Kino's Journey ) and illustrated by Kouhaku Kuroboshi , rather than by the original SAO author Reki Kawahara.