Rose Guns Days (ローズガンズデイズ, Rōzu Ganzu Deizu) is a four-part Japanese dōjin visual novel series produced by 07th Expansion and playable on Windows PCs.

The scenario is written entirely by Ryukishi07, who also provides some of the character designs, which are divided between three additional artists: Jirō Suzuki, Sōichirō and Yaeko Ninagawa.

[7][8] A manga adaptation of Rose Guns Days Season 1, illustrated by Sōichirō, was serialized between the September 2012 and March 2014 issues of Square Enix's Gangan Joker magazine.

[12][13] A manga adaptation of Rose Guns Days Season 2, illustrated by Nana Natsunishi, was serialized between the February 2013 and April 2014 issues of Square Enix's GFantasy magazine.

[16][17] A manga adaptation of Rose Guns Days Season 3, illustrated by Yō Ōmura, began serialization in Square Enix's Gangan Online magazine on September 19, 2013.

[18] A manga adaptation of Rose Guns Days Last Season, illustrated by Mitsunori Zaki, began serialization in the May 2014 issue of Square Enix's Big Gangan magazine.

[23][24] A prologue manga, titled Rose Guns Days Fukushū wa Ōgon no Kaori (Rose Guns Days 復讐は黄金の香り) and illustrated by Mei Renjōji, was serialized between the June 2013 and June 2014 issues of Kodansha's Monthly Shōnen Sirius magazine.