ヒエン

Hien is Sakuya's brother, and Genjimaru's grandson. He is often the level headed one between him and Hauenkua.

He pilots a blue Avu-Kamuu armed with a massive blade. He also advocated that the Emperor/Empress should unite the nations through peace. In the game, he advocates starting global war and destroying all enemy villagers just like Hauenkua, except unlike Hauenkua, he believes that he is doing it for a good cause. When Dii reveals himself, Hien willingly joined him. During his final encounter with Hakuoro's forces, he kills Hauenkua mid battle. Once he is defeated by Hakuoro and his allies, Hien assists them by leading them to Dii's location, but is killed by Mutsumi