Kouji Yamamoto is a producer of content who previously worked at Fuji TV. As the first chief producer for their late night noitaminA programming block, he helped establish this popular television program. In 2014, after spending over a decade with noitaminA, Yamamoto left Fuji TV to start his own company, Twin Engine. This new business focused on content planning and production. Their first project was Taifuu no Noruda. Despite leaving Fuji TV, Yamamoto has continued to collaborate with this network on various productions such as Shisha no Teikoku, Harmony, and Gyakusatsu Kikan.