Humagears, created by the leading company for A.I., HIDEN Intelligence, serve humanity's every convenience. But a cyber-terrorist organization begins hacking the Humagears in a conspiracy that turns them into monsters. Aruto Hiden has taken over at HIDEN Intelligence, and along with the CEO's post, he also takes over the responsibility for Kamen Rider Zero-One by using his company's technology. Aruto tries to keep the peaceful world between humans and Humagears with his Humagear secretary, while...