KAMITSUBAKI Story Research and Development (Kamitsubaki monogatari kenkyu kaihatsu bu) is a team that develops original story content by KAMITSUBAKI STUDIO and extensive mixed media works based on said content.

While collaborating with internal and external creators, writers, and development companies, the team researches and develops original content linked to the worldview of the artists in the team, including story sets in the virtual world of KAMITSUBAKI City.

The KAMITSUBAKI City Under Construction series, and Fairy Tale series are currently underway.

The team is divided into two main sections: the original story development team, ORIGINAL STORY DEVELOPMENT, formerly known as NBM by KAMITSUBAKI, and GAME DEVELOPMENT, which develops and directs games.