Aizetsu ( 哀 あい 絶 ぜつ Aizetsu?, lit. Sorrow) is a tall young adult man with a lean muscular build and shoulder-length hair and narrow, deep blue eyes with the daiji of "Upper Rank" ( 上 じょう 弦 げん Jōgen?) and "Four" ( 肆 し Shi?) engraved into them. Aizetsu can transform his flesh into a Jumonji Yari – a spear in the shape of a cross. His Blood Demon Art, “Spear Projection”, allows him to project the thrusting attack of his Yari over great distances, enabling him to attack his targets from a distance.