The Devil on G-String

Much of the gameplay in The Devil on G-String requires little interaction from the player, because the majority of the time is spent reading the text that appears on the game's screen. The text being displayed represents the thoughts of the characters or the dialogue between them. The player is occasionally presented with choices to determine the direction of the game. Depending on what is chosen, the plot may progress in a specific direction. There are four different routes in total.

The Devil on G-String's story revolves around Kyōsuke Azai, the adopted son of Gonzō Azai (浅井権三, Azai Gonzō), a yakuza leader. Kyōsuke works under Gonzō in order to pay off the sum total of a loan taken out by his biological father and the costs of raising Kyōsuke himself under Gonzō's wing. He eventually hopes to reunite with his mother, from whom he was separated many years earlier. At the beginning of the game, a girl named Haru Usami transfers into Kyōsuke's school and introduces herself as "a hero".

She initially ignores Kyōsuke, but soon asks him if he knows a person named "Maō". Kyōsuke replies to the peculiar question in the negative, but later that evening, receives a bizarre email from a "Maō". Due to his possible connection to yakuza turf wars, Gonzō instructs Kyōsuke to find and capture the enigmatic figure. The game's expository first chapter ends with "Maō" directly challenging Haru to discover his identity.

The Devil on G-String is Akabeisoft2's ninth game in three years, and the second of four games released in 2008 alone. The project is notable as having very few people credited for having taken a part in the creation of the game. Planning for the project and the scenario were headed by Loose Boy. Art direction and character design were done by Alpha.

Before The Devil on G-String's initial release, two free game demos became available for download at Akabeisoft2's official website. In the demos, the player is introduced to the main characters in the game that is typical of the gameplay found in a visual novel which includes times during gameplay where the player is given several choices to make in order to further the plot in a specific direction. The full game was first released on May 29, 2008, in limited and regular editions playable as a DVD on a Microsoft Windows PC. The limited edition contained an art collection from Akabeisoft2's previous titles Sharin no Kuni, Himawari no Shōjo, that game's fan disc Sharin no Kuni, Yūkyū no Shōnenshōjo, and Sono Yokogao o Mitsumeteshimau: A Profile Kanzenban, a desk calendar, and a demo of Tayutama: Kiss on my Deity from Akabeisoft2's sister brand Lump of Sugar released two months after The Devil on G-String. An all-ages English version of The Devil on G-String published by Sekai Project was released on Steam on November 5, 2015.

From mid-March to mid-April 2008, about two months before The Devil on G-String's release, the game ranked second in national PC game pre-orders in Japan. The limited edition of The Devil on G-String ranked second in terms of national sales of PC games in Japan in May 2008, and the regular edition ranked twenty-sixth for the same month. The limited edition ranked again for June 2008 at 23rd-highest selling in Japan. com.

The game ranked again at sixteen the following month in the same ranking. com. The game received first prize at the Bishōjo Game Awards for 2008.