Usagi lived at home with her family in the Azabu-Juuban district of Tokyo. Her mother, Ikuko, was a housewife who had a good relationship with her daughter, but could be quite the disciplinarian when it came to studies, and was often disappointed in Usagi's poor school performance. Her father, Kenji, was a magazine editor who to some extent still viewed Usagi as a little girl; he was horrified when he discovered that Usagi had a boyfriend. Usagi was the only Senshi to have a sibling, and she and her younger brother Shingo had a typical brother-sister relationship: caring but rife with sibling rivalry. Shingo often would side with Chibiusa in arguments with Usagi.