Koichi's ability allows him to glide across surfaces by connecting three points, such as his hands or feet. Despite having a weak power, he aspired to become a hero. Unfortunately, he couldn't attend hero school because he chose to save Kazuho Haneyama rather than taking the entrance exam. Later in life, Koichi became a vigilante alongside Pop☆Step (Kazuho Haneyama) and Knuckleduster (Iwao Oguro).