Daichi Yamagata

A patient track star who is also a good student giving him the fame of "Running Brain" which is in contrast to Riki. He shows his team concern and is self-sacrificing even when he placed himself at risk to be able to have the Turbo Rugger completed. A reliable sub-leader who will always be for support of his teammates. He once befriended the monster Sumo Boma whom he defeated in a sumo battle and granted the demon rest. He defeated Jarmin in battle after helping Dr. Dazai get the parts to complete the Turbo Rugger.