Mitsuru Karahashi

Set in a virtual simulation of Shibuya, Tokyo which is regulated by an entity named Piece which does not allow inhabitants to live, the series focuses on a fifteen-year-old boy named Tsuyoshi who seeks to find both his lost memories and a way to escape Shibuya. To maintain control, Piece locks "kills" those who do not operate within the proper confines of the world, which results in their being reset and inserted back into the city with a new name and identity and without their previous memories.

Takeru Shiba, the head of the Shiba family and Hikoma Kusakabe call four teenagers in order to battle the Gedoushu. They transform into Shinkengers by using Shodo Phones. Genta Umemori, a childhood friend of Takeru joined Shinkengers as Shinken Gold.