Gunslinger Girl is a Japanese manga series written and illustrated by Yu Aida. It was serialized in Dengeki Daioh magazine from May 2002 to September 2012. Its chapters were collected in 15 tankōbon volumes by ASCII Media Works. Set in modern Italy, the series focuses on young cybernetic girls and their adult male handlers who use them as assassins under the directions of a government organization.

Monthly Comic Dengeki Daioh is a Japanese shōnen manga magazine published by ASCII Media Works under the Dengeki brand. Many manga serialized in Dengeki Daioh were later published in tankōbon volumes under ASCII Media Works' Dengeki Comics imprint. The magazine is sold every month on the 27th. A yonkoma section of Dengeki Daioh called Dengeki Yonkoma Daioh (電撃4コマ大王) features various omake strips of the manga series published in it. The format is typically a normal drawing on the right side featuring one or sometimes more characters, and a vertical four panel strip on the left featuring characters from the associated series in super deformed form. Two special editions of the magazine called Dengeki Moeoh and Dengeki Daioh Genesis are sold bimonthly and quarterly, respectively.