Mitsuhiko Kanna has only appeared in Brave 30. He was a snobbish rich man who was full of himself, proclaiming that he "stood in the center of the world", and had an infatuation with Amy who happened to have Stymero's Secret Stone. He would only give it up if the Kyoryugers won the scavenger hunt/laser tag game on his property in exchange for Amy's hand in marriage, thinking that Souji was "competition". When Debo Zaihodoron attempted to attack Kanna, Souji protected him, followed by Amy, shocking Kanna with her strength.