Ikki does not appear in the "Hades" arc until the Saints are already in the Underworld. He defeats Garuda Aiacos and then confronts Hades himself, who had gained possession of his younger brother's body. Ikki attempts to rip the god out of Shun's body, and is punished for it with death. Not even the god of the Underworld could keep the Phoenix down, however, and Ikki eventually travels to Elysion where he participates with the other Bronze Saints in the battles against Thanatos, Hypnos and Hades.