Sword Art Online Progressive Volume 01

Sword Art Online Progressive Volume 1 is the start of the reboot of Sword Art Online, a light novel series by Kawahara Reki. It was released on October 10, 2012.

Background
The volume contains Kirito's adventures at the first and second floors of Aincrad, including a rewrite of two side stories.

Aria in the Starless Night (Aincrad 1st floor, December 2022)
It has been a month since Kayaba's tutorial, Kirito is in a dungeon and found himself watching a person fighting a Ruin Kobold Trooper. Kirito decides to appoarch the player and tries to give some advice on how to fight more efficiency, soon realizing that the player was female. The rapier user decided to end the conversation with Kirito as the monsters were going to re-spawn soon. The rapier user begins to walk away before fainting. Kirito quickly transport her outside the dungeon from harm’s way. After Asuna had finally rested on the grassy field, she wakes up and notices Kirito who saved her; she responded to him by stating that saving her was an "Unnecessary Effort". After Asuna reminisced about how her old ordinary life changes when she borrowed the «Nerve Gear» from her older brother: «Yuuki Koichiro». Kirito notifies Asuna about the upcoming meeting for the boss raid at the town call «Tolbana».