The story starts when three authors who talking to each other and think about their new story, suddenly they got suck inside the portal and meet Kamen rider Decade, Ultraman King and Aka Red, who told them that they need to save the world of Honkai. They accept the power to save the world and choose to become Kamen Rider and Ultraman, they are sent to the city where their story started. And now they are ready to change people's fates and even fight their enemy... Here come the God and the Giant of light.
10 parts