In 2021, Toho, Khara, Tsuburaya Productions, and Toei held a meeting and unanimously agreed to create the Shin Japan Heroes Universe, with the assistance of Hideaki Anno.

[5] Regarding the fruition of the project, Anno stated that it "was conceived in the discussions of the related companies, from the idea of combining characters that are proud of Japanese culture, in a collaborative way, to further expand them around the world and stimulate fun.

In the future, the word Shin will be removed...we hope that the development of SJHU will please our fans as a new pleasure that transcends the boundaries of the character(s) worlds.

[18] The ensuing month, the video game SD Shin Kamen Rider Rumble, featuring a season pass with three DLC packs was revealed.

[20][21] Hiroshi Butsuda directed a promotional video featuring the "Shin Universe Robo", released the same month, which a mecha formed by the combination of Godzilla, Ultraman, Evangelion Unit-01 and Kamen Rider No.