A coloring book in the series that uses Koyoharu Gotouge's original illustrations from Demon Slayer: Kimetsu no Yaiba. It follows the first two volumes and came out together with the -Daidai- volume. This -Ai- volume mainly collects illustrations from the battle in the Entertainment District.
The book has 37 pictures to color, including two double-page spreads. Pages from page 9 onward are perforated and can be removed.
The back of the cover is a poster made from the color illustrations that the line art is based on, and it can be used as a color guide. The binding opens easily and is made to be durable.