Chiyo St. Inc., doing business as Chiyomaru Studio (Japanese: 千代丸スタジオ Hepburn: Chiyomaru Sutajio), is a multimedia concept studio led by Chiyomaru Shikura, the representative director and president of Mages. The company, which was originally named Chrome Edge (クロウムエッジ Kuroumu Ejji), was founded separately from Mages for the purpose of managing the copyrights to the media projects Shikura works on, including the Science Adventure franchise and the Occultic;Nine novel series, and for creating stories for use in various media.
While the concept work is done by Chiyomaru Studio, they work together with Mages to develop video games using the concepts, and with Kadokawa Corporation to print books and produce anime and manga. The studio includes staff members from Mages, who communicate with one another through instant messaging; as of 2015, Shikura was the only on-site staff.
The first new intellectual property developed by Chiyomaru Studio, not based on Shikura's previous works, is the upcoming video game Anonymous;Code, which is developed together with Mages' video games division 5pb. Games, and is together with Occultic;Nine part of a media franchise referred to internally as Science Visual Novel. Chiyomaru Studio is also developing the Science Adventure game Robotics;Notes DaSH. Since 2017, the studio organizes live music events where they also release updates on their media projects, called "Chiyo-ST Live".
Source: Wikipedia, "[en.wikipedia.org/wiki/Mages_%28company%29%23Chiyomaru_Studio Mages (company)]", available under the CC-BY-SA License.