海野ぐりお, Melvin McCellbellum, Ubaldo, Melvin Butlers, Professor GuriGuri
Initial Age: 14-15
Gender: Male
Gurio is a smart nerd who is a classmate of Usagi and Naru at Juban Public MIddle School. He is usually called by his family name “Umino”. He keeps the sailor team up-to-date with information and rumors.
