Dai Yōko is the powerful Kitsukami founder of the Kawahira Clan. Due to his great power, the newly apointed leaders of the Kawahira began to fear Dai Yoko and was sealed under a large stone by the founding patriarch of the Kawahira family. He is Seireitou and Kenji's real father. He appears to also have a little kitsune daughter named Yōko to who has lived with the Kawahira family instead of being brought to the Hyugas like Seireitou and Kenji were.