In addition, the short spin-off manga titles by Ryoji Hirano, namely Kimetsu no Yaiba: Tomioka Giyu Gaiden and Kimetsu no Yaiba: Rengoku Gaiden will be also combined as a single volume simply titled Kimetsu no Yaiba: Gaiden, which is also set for a December 4th release in Japan and will have an initial 1 million copy print run. This is the first Weekly Shonen Jump spin-off manga to receive an initial run that large. Lastly, the series will have an artbook and a second fanbook, both are set for a February 4, 2021 release.
[Source: Anime News Network]