Miss Monochrome is an original character created and voiced by Japanese singer and voice actress Yui Horie, first appearing as a 3D virtual singer in March 2012 at the concert The Adventure Over Yui Horie III ~Secret Mission Tour~ (Secret Mission Tour～, Horie Yui o Meguru Bōken III ~Secret Mission Tour~). A 13-episode anime television series by Liden Films aired in Japan between October and December 2013. A second season of the anime began airing from July 3, 2015. A manga series began serialization in Kodansha's Good! Afternoon magazine in February 2014.