Hien is Sakuya's brother, and Genjimaru's grandson. He pilots a blue Avu-Kamuu armed with a massive blade. He is the more level headed one between him and Hauenkua.
He also advocated that Kūya should unite the nations in peace, but under their rule. 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 rather than for pleasure. When Dii revealed himself, Hien willingly joined him. He is killed by Hakuoro/Witsuarunemitea who was trying to end the war.
