At 18 years old (40 as of Gokaiger), Riki was a brave high school baseball team captain and an ace pitcher who dreams of becoming a professional, his technique is the "Demonball of Fire/Honoo." Despite his apparent hyperactivity disorder, Riki has a high sense of justice and confidence. He is the kind of person who is not in good graces with his teacher due to his low grades which is seen earlier, and made even worse with the fact that he had to come up with excuses of skipping classes for the sake of his duty as a Turboranger. He shows his unusual amount of power in matters like when he defeats Zimba when challenged for the final duel. Riki also kills Lehda in the middle of the battle with the Super-Majin Bohma which he rushed into it out of impulsiveness. He was captured by Wandering Bohmas and forced to pit against Lagorn where after a hard battle near death which he managed to win by inflicting a mortal wound on Lagorn's heart at a desperate attempt. Riki pulled the team together during the final battle.