As the Kimetsu no Yaiba ( Demon Slayer manga ended with volume 23, the series announced that it has added 39 more pages. These new pages will consist of a 14-page epilogue, as well as 25 pages of bonus content. In other words, the story isn't over yet for author Koyoharu Gotouge .
The launch is scheduled for December 4th.
Finally, in addition to Kimetsu no Yaiba's epilogue, Shueisha also announced that the manga will have 120 million copies in circulation (including digital sales) upon its release. The 23rd volume alone will have an initial print run of 3.95 million copies. Ryōji Hirano's short manga series "Kimetsu no Yaiba: Tomioka Giyū Gaiden" and "Kimetsu no Yaiba: Rengoku Gaiden" will also be compiled into a single volume titled Kimetsu no Yaiba: Gaiden, which will be released on December 4th, with an initial print run of 1 million copies. It will be the first spinoff of a Weekly Shonen Jump series to receive such a large initial run.
Via: mantan-web