Kenji is the main protagonist of Kotetsushin Jeeg. A high school student who is also a proficient motorcycle racer and martial artist. He and Kyo are HMB (Hyper Motor Bike) racers for Team Shiba but despite this they are clearly rivals. He becomes the pilot for Kotetsushin Jeeg when a Haniwa Genjin awakens and threatens his town. He has an incredible appetite and is always seen in the cafeteria eating huge amounts of food after each battle. He has a soft spot for his childhood friend, Tsubaki.