A doujinshi co-authored by Kawahara Reki, under the pen-name of Kunori Fumio, and ponz on Sword Art Online.

Note: Part comic/novel doujinshi. Novel by Kawahara Reki, manga by ponz.

The contents are:
"Sound of Water, Sound of Hammer" - Kunori Fumio
"Extraordinary Ordinary Days" - ponz