Clashes persist between the "Penguin Empire," a mysterious life form that suddenly appeared on Earth, and "Beauty Salon Prince," the clandestine anti-Penguin group. To combat the Penguin Empire's colossal "Penguin Robot," Beauty Salon Prince has created their ultimate weapon, "Daimidaler," and is currently seeking a pilot. They select Koichi Madanbashi, a passionate high school student obsessed with large breasts, because he possesses "Hi-ERo particles," the origin of an unknown energy.