Oka

Ouka
Ouka (with baby Ryuou), as she appears in the manga.
Name in Kanji	オウカ
Name in Romaji	Ōka
Alternate spelling(s)	Oka, Ohka
Family	Shume (younger sister) Ryuou (son) Shuken (nephew)
Position(s)	Hokuto Sōke descendant
Appearances	Manga, (ch. 207), Anime (ep. 150)
Voice actor(s)	Mika Doi

Ouka (オウカ, Ōka)

A woman of the Hokuto Sōke clan who existed 2000 years ago. At the time, she and her sister, Shume, were the only remaining descendants of the original bloodline. The holy priests desired a male heir to conquer the war-torn land, and as an ill omen, both Ouka and Shume gave birth to sons on the same day: Ouka to Ryuou, and Shume to Shuken. Their hopes of raising the sons together were dashed when the priests declared that only one could become successor. The babies were taken to a holy plateau and left to the mercy of the wolves, where the surviving child would be named successor.

Shume headed to the mountains to save her son, only to be caught by Ouka and the priests. It was then that Ouka discovered her sister was dying of illness. Moved by her sister's grief, Ouka overruled the priests and decided that Shuken would become successor over her own son. In return, she offered her life for Ryuou's and jumped to her death from the cliff. The priests honored her sacrifice and made Shuken successor. However, while Shuken never forgot the love of his mother and auntie, becoming founder of Hokuto Shinken, Ryuou and his descendants would forever search for the love they were denied.

Ouka in the anime