is a legendary shinobi that is touted as the founder of the modern day Hyūga Clan. He lead his clan to join Madara Uchiha and Hashirama Senju in forming Konohagakure. Sometime following Madara's defection from the village, Unagi was killed in action in battle with the legendary Uchiha, sparking intense hatred between the clans for decades to come. At one point, he was considered a likely successor for Hashirama, earning him the title , however, ultimately, this seat was taken by Tobirama Senju due to Unagi's untimely demise.