"Amazons", wild youths in the jungle, are remodeled by the ancient science of Inca. With the "Bracelet of Gigi," the key that opens the door to the hidden treasure, in his arms, he protects the treasured weapons and weaponry, as well as the future of mankind...! The enemy is Gorgoth, a ten-faced demon who plans to conquer the world with the "Bracelet of Gaga," a pair of keys! In addition, there is a storyboard manga "Kamen Rider," an experimental new format of storyboard manga.