RinJyuDen, the evil Jyuken school led by Rio, turns the city into chaos by gathering people's screams and despair. Opposing them are the Gekirangers, who fight in justice to protect. Although they are still in training, they do not give up until they master the jyuken. Once they get stronger, Rio, who seeks the ultimate power, challenge them to find out who is the strongest in jyuken.—Immanuel A.

Jyuken, a kenpou mimicking animal ability, are split into two opposing schools, Geki Jyuken Beast Arts and Rin Jyuken Aku Gata. While RinJyuDen gathers people's screams and despair, the Gekirangers are moved by justice and fight to protect.—Immanuel A.