Gentaro Takahashi

Massan is based on the lives of Masataka Taketsuru and his wife Jessie Roberta "Rita" Cowan, a Scotswoman Taketsuru met while studying abroad.

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.