Aoharu × Machinegun.

青春×機関銃

Aoharu × Machinegun (Japanese: 青春×機関銃, Hepburn: Aoharu × Kikanjū) is a Japanese manga series by Naoe, serialized in Gangan Comics' shōnen manga magazine Monthly GFantasy from January 2013 to August 2019 and collected in eighteen tankōbon volumes. An anime television series adaptation was announced and aired from July 3 to September 18, 2015.