Yukina

Yukina (雪菜) is the kind, thoughtful, and somewhat naïve twin sister of Hiei. Yukina was born as an ice apparition (Kōrime, 氷女, literally Ice Woman), who have abilities relating to snow and ice, light healing abilities, tears that become valuable gems. At some point, Yukina was kidnapped by an associate of the Black Book Club, but gets rescued by Yusuke, Kuwabara, and Hiei. Yukina later finds out about her brother, and searches out to find him, eventually finding out that Hiei is her brother in the manga. Yukina is also the love interest of Kazuma Kuwabara, although she remains unaware of this.