A shoemaker from the moon, Haruka came to Rolling Town interested in Dan and Co.'s BFB skills. She develops special basket ball shoes for their Big Foots in order to promote her business. She also has a fetish for feet (unintentionally tickling Dan mercilessly while caressing his feet upon their first encounter) and has the ability to read people's thoughts just by looking at their feet. She is well endowed due to her being from the moon (referred to as the "Lunar Bust") and the low gravitational force, allowing her bust to develop to an abnormally large size. Her shoes contain NIKE's famous swoosh logo.