The manga inspired two original video anime series, with the first debuting in April 2014, and the second debuting last July.
Maita launched the Age 12 manga in Ciao in 2012, and Shogakukan published the ninth compiled book volume on April 27.
Shogakukan and Happinet Games opened a website on April 28 to announce 12-Sai ~Koi Suru Diary~ (Age 12 ~Loving Diary~), the second Nintendo 3DS game inspired by Nao Maita’s 12-Sai.