Manga Written by and illustrated by ,
Act-Age was serialized in
Shueisha's
manga magazine
Weekly Shōnen Jump from January 22, 2018, to August 11, 2020. In October 2019, Viz Media announced the print release of the manga; the first two volumes were released on July 7 and September 1, 2020, respectively. Editors from
Weekly Shōnen Jump stated that they would be taking the matter seriously, and later announced the series would immediately end publication with the chapter released on August 11. On August 17, 2020, Shueisha announced it had suspended all sales of the manga, and canceled the planned volume 13 and beyond. Viz Media and
Manga Plus also decided to not publish the series' final chapter on their platforms. Viz Media removed its listing of further volumes. On September 16, 2020, Matsuki was formally indicted for the second of the two indecent acts committed; Matsuki's sentencing was held on December 23 of that same year. The
Tokyo District Court handed Matsuki a guilty verdict and a sentence of one year and six months in prison,
suspended for three years (i.e., Matsuki would not serve his sentence if he remained on good behavior for three years). Despite being fired from Shueisha, Matsuki was permitted to work for
Shogakukan under the pseudonym Miki Yatsunami. He wrote
Seishou no Shinrishi for Shogakukan's
MangaONE service, a fact that only came to light when the company received widespread criticism for continuing to hire manga writer Shoichi Yamamoto despite similar offences.
Volumes Uncollected chapters These chapters were not published in a volume. They were originally serialized in Japanese in issues of
Weekly Shōnen Jump from April to August 2020.
Canceled stage play In June 2020, it was announced the manga would receive a stage play adaptation in 2022 titled . The play would be produced by
Horipro, and directed and written by Shū Matsui. A "remote audition" for the role of the protagonist Kei Yonagi would have been held across Japan. On August 11, 2020, after Tatsuya Matsuki's arrest and the cancellation of the manga, Horipro announced the cancellation of the stage play. ==Reception==