Hiyoko was born as the heiress to the Saionji Clan, the head of the school of traditional Japanese dance. Her traditionalist family was very overbearing due to this important role. Making things worse, her chosen bloodline was constantly targeted by conspiracies and assassinations due to jealous people. As a child, she constantly suffered cruel and even life-threatening pranks and threats, like having pins in her shoes, dead mice scattered all over her bed, and poisoned food.