The enigmatic "Penguin Empire" remains locked in ongoing conflict with the covert anti-Penguin alliance known as "Beauty Salon Prince." In order to successfully defeat the towering "Penguin Robot," Beauty Salon Prince has created their ultimate weapon, "Daimidaler," and is now searching for a qualified pilot. After careful consideration, Koichi Madanbashi, a zealous high school student with an unwavering fascination for full-figured women, is selected. His possession of the rare and unfamiliar energy source known as "Hi-ERo particles" makes him the ideal candidate.