The 12th, 13th, 14th, and 15th manga volumes all bundled original anime DVDs when they shipped in September 2015, April 2016, December 2016, and September 2017, respectively.
The slice-of-life comedy story already inspired two television anime seasons, original video anime projects, and several previous anime DVDs bundled with the manga.
The wraparound jacket band on Tozen Ujiie’s 16th Seitokai Yakuindomo manga volume revealed on Friday that the 17th and 18th volumes will bundle original anime DVDs when they ship on April 17, 2019 and August 16, 2019, respectively.
(The 16th manga volume bundled a DVD of the anime film.)