Shinku Yūhi

Kurenai Yūhi's father was a Konoha shinobi.

Background
During the Nine-Tails' Attack on Konoha, Kurenai's father was one of the adults responsible for keeping Konoha's youths from helping defend the village. Because this might have been a futile gesture to keep them, shinobi, safe, he requested that Kurenai live long enough to have a child that she could pass the Will of Fire on to. He could be observed as a kenjutsu user, seen with a sword on his back.

Trivia

 * Kurenai received her unique eyes from her father.