Hikaru Himuro

Hikaru Himuro (氷室ヒカル Himuro Hikaru) is the champion of Dragon Drive and Reiji's biggest rival. His first dragon was Kokao, but was previously replaced by Kanopus. He becomes an antagonist after entering Rikyu under RI-ON's orders, but towards the end of the series, he becomes a deuteragonist after helping Reiji and his friends defeat Kohei Toki.