It puts a cartoon character in a world that draws blood, and then makes you watch him figure out what that means. The gimmick is the whole engine: three schoolboys with soft, rubbery, gag-manga bodies step through a DVD into a hyper-realistic parallel Earth, and the same design language that made them look harmless makes them nearly unkillable there. Pyontaro doesn't get a training arc or a chosen-one speech. He gets a little sister, Futaba, who wandered through the gate while nobody was looking, and aliens holding her on the other side. The sci-fi premise is a delivery system for a much older, meaner question, which is what an ordinary kid will actually do when the rescue is on him and there's no adult coming. Adventure on the surface, drama underneath, and the art style itself is doing the arguing.

Three ordinary schoolboys get hold of a DVD that is said to open a gateway to a parallel universe. While their attention is elsewhere, Pyontaro's little sister Futaba passes through, and she is kidnapped by the aliens who have overrun that version of Earth. On the other side, the boys find that their cartoonish bodies turn them into supermen in this hyper-realistic world. With that strange advantage, the trio sets out to rescue Futaba. The result is a sci-fi adventure with dramatic stakes.