Sword Art Online Alternative Clover's Regret Volume 01

Sword Art Online Alternative Clover's Regret (ソードアート・オンライン オルタナティブ クローバーズ・リグレット) is the tankoubon version of a light novel spin-off series, written by Watase Souichirou, illustrated by Ginta, and supervised by Kawahara Reki, that was serialised on Dengeki Bunko MAGAZINE volumes 50-52 as part of the Dengeki Bunko Resurrection series.