The hit popular manga series Kimetsu no Yaiba or Demon Slayer by Koyoharu Gotōge has crossed over 80 million total copies.
The cumulative circulation of Kimetsu no Yaiba was announced to have exceeded over a total of 40 million copies as of the release of the 19th volume in February and over 60 million copies as of the 20th volume in May. In addition to the normal version, volume 21 also includes a special edition Kimetsu no Yaiba Saki Seisaku Hokusho, a set of 32 character stickers and a case. The circulation of the first edition has increased from 2.8 million copies for the 20th volume and reached over a total of 3 million copies for volume 21.
Source: Natalie Comics Japan