Nova Tanaka is an ordinary 15 year-old kid... okay ordinary is a bit to far to describe him. He is powerless, in a world where 80% of the population has some kind of super power, and heroes are an actual job. Or Quirks, as they're called. But what no one knows, but he is something called a Singularity Point. What that means, is that he is immune to paradoxes, and changes to time. One day, he finds a strange pass, and on that day, he discovered the time traveling train, the Denliner. Armed with the Den-O system, the Denliner, the Denbird, and 4 quirky Imagin, UA is taken by storm by the Climax Hero: Kamen Rider, Den-O!