Hiroki is a boy who dreams of making his own airplane. He often crashed his airplane, as he was unsuccessful most of the time. Rini, Melanie, and Kelly offered to help him but as it was his dream he wanted to do it on his own. Eventually he agreed to let them help him. He was being targeted by Besu Besu for his dream mirror. She extracted it, only to see that it wasn't the golden mirror. After her Remless, Paopao Girl, was destroyed, Hiroki succeeded in making his airplane, flying it with Kelly.