Along with the return of the Ogasawara Islands, the U.S. Navy's state-of-the-art submarine Antares will be coming to Yokosuka. Students flock to the port in order to see the show by the popular group "Angel Stars." Then radical superhumans hiding amongst the crowd start to protest, and there is chaos after musical notes materialize in sync with the performance. And then, a superhuman calling himself Wonder Sword Claude slices the submarine in half and starts to uncover the terrifying secret hidden inside Antares.