This is the Joy and Comfort Planning Committee. (Volume 1-3 is the latest issue)

Publisher: KADOKAWA/Kadokawa Bookstore
Author: Torii Sheep, Kosugi Kosugi
Size: 128mm x 182mm
Number of books: 3
Language: Japanese
Category: Youth manga, manga
Latest release date: 2016-03-24

Synopsis:
The absolute queen, Siren, manages Mizube no Park City with 99.9 % of safety and 99.9 % happiness. Ondine, the living information terminal, is attracted to the boy, Ren, who helped lost, but his emotions flowed into the queen.