Kawahara Reki under the pen name Kunori Fumio originally self-published nine individual doujin comic/novel side stories of Sword Art Online, that were later compiled into one volume. The individual chapter names are:
1. The Clearers (or The Progressors)
2. Early Characters
3. Ceramic Heart
4. Cold Hands, Warm Heart (Aincrad 50th Floor, September 2024)
5. Salvia (Before the events of Fairy dance; Kawagoe, January 2025)
6. Algade Showdown (Aincrad 22nd floor, October 2024)
7. Continuation: Aria in the Starless Night (Aincrad 2nd Floor, 4 December 2022)
8. Rondo of the Transient Sword - first chapter (Aincrad 2nd Floor, 8 December 2022)
9. Monochrome Concerto - first chapter (Aincrad 3rd Floor, 14 December 2022