In her past, Hungary was once a nomadic girl who loved to chase after horses on the plains and was rather tomboyish, having been raised to believe she was male until her breasts grew. She is described as being, a reliable older sister type, the manliest character in the series, and being very scary when angered. She loves bathing in hotsprings and singing scary songs. She still appears to occasionally speak boyish manner, especially when excited, using the masculine Japanese pronoun ore to refer to herself in the original text. She comes off as a fujoshi. She doesn't get along well with Romania, to the point where their relationship is described as like that of cats and dogs. She also doesn't get on well with Prussia, as he teased her for her hardships when they were young.