Hina (氷菜, Hina) was the mother of Hiei and Yukina. Sometime in her life, she left the Glacial Village, where her kind live, and conceived children with a male. This resulted in the birth of twins, Hiei and Yukina. Although Yukina was born an Ice Apparition (氷女, Kōrime) like her mother, Hiei was born male, and a fire demon.
The elders of the village deemed Hiei to be a danger to their society and declared that he must be destroyed. Rui, Hina's closest friend, was instructed to drop Hiei from the Glacial Village into the depths of Demon World.
In the anime, Hina committed suicide shortly after Hiei was cast out. In the manga, however, it was said that she died shortly after giving birth to her children. Hina's closest friend Rui was forced to be the one to throw Hiei into the depths of demon world.
Though not much of her personality was revealed, one can assume that Hina was different from other Ice Apparitions in that she was willing to break their laws and find a man. Moreover, in spite Hiei's gender and dangerous power, she still loved him deeply enough to plead for her elders to spare him.
She is voiced by Maria Kawamura in the Japanese version. In the English dub she was voiced by Lauren Goode in the original release and by Kelsey Lewin for the Blu-ray remaster.