Mayumi Uchida is one of the characters of Hai-Furi. She is the Harekaze's starboard navigation controller.Mayumi wears the school uniform but with a longer skirt, around knee level. She has a tan skin tone than most crew members, which was a result of getting sunburned at one point. She has purple eyes and maintains a braid, tied by a blue-green bow, on her left side. As the eyes of the Harekaze on its starboard, Mayumi knows how to remain calm, even in a pitched battle,she is master martial art