Before the game was released, Koei revealed his image and asked fans to give him a name. Ben-K was the winner and the name was submitted by Tomohiro Maruyama. The name was chosen for its unique naming structure; it was also chosen since its standing posture roughly resembles the historical figure it got its namesake from. In the Japanese version, he is voiced by Daisuke Tōjō (although his voice is heavily distorted).