Complex Age

 is a Japanese manga series written and illustrated by Yui Sakuma.
The series began as a one-shot published on Kodansha's "Weekly Morning" "seinen" manga website in May 2013. The one-shot drew 1.25 million viewers to the website and won a Tetsuya Chiba Prize. It was relaunched on 22 May 2014 and ran until 4 June 2015. The manga was licensed for release in North America by Kodansha USA. A comic video adaptation was released on the "Morning" website alongside the fifth volume in August 2015. The series was compiled into six volumes.
Plot.
The original one-shot focused on Sawako, a married 34-year-old woman with an interest in the Gothic Lolita culture which she tries to conceal from her coworkers.
The 2014 series focused on 26 year old Nagisa Kataura, a cosplaying delivery company employee who also tries to hide her passion from her coworkers. She was voiced by Kyōko Narumi in the voice manga.