Koakuma Ageha
October 2010  | |
| Chief editor | Rie Momose 2021 – present | 
|---|---|
| Former editors | Hisako Nakajo 2005 – 2011 Marika Koizumi 2015  | 
| Categories | Fashion, Lifestyle | 
| Frequency | Bi-yearly | 
| Circulation | 350,000 – 400,000 | 
| Publisher | HJ 2021 – present Transmedia 2017 – 2020 Neko Publishing 2015 – 2017 Inforest 2005 – 2014  | 
| First issue | October 2005 | 
| Company | HJ Co., Ltd. | 
| Country | Japan | 
| Language | Japanese | 
| Website | https://agehaageha.jp/ | 
Koakuma Ageha (小悪魔ageha, lit. "Little-devil (or demon) Swallowtail [butterfly]") is a Japanese magazine that introduces the latest fashion and lifestyle trends popular among hostesses that is published twice a year, with the main target audience being women in their teens to 20s. Fans of the magazine are also referred to as "agejo" (age嬢, a combination of "Ageha" and "Lady") and often members of the Gyaru subculture.
During its peak in 2008, 300,000 of the 400,000 copies produced were sold. In addition to this extremely high circulation, the Koakuma Ahega is unique for promoting hostess club (Japanese-style cabaret) culture, as it mainly targets women who work at hostess clubs as hostesses, and most of its models are hostesses who actually work at hostess clubs.
Sociologist Shinji Miyadai has described this magazine as a "textbook for hostesses". Some describe this magazine as the "bible for hostesses".
After multiple bankruptcies, Koakuma Ageha was revived as online magazine on January 5, 2021 with special physical issues releasing bi-yearly since May 26, 2021.