Sailor Aluminum Seiren appeared in just one Sera Myu production - Kakyuu-Ouhi Kourin - The Second Stage Final, the 2004 Winter Special. Like the other Sailor Animamates, she posed as a member of the Dancing Animamates, an "International Dancing Team." She went by the name "Half Bird" and called herself a "yuuwaku no vocalist" (誘惑のボコリスト; meaning "tempting vocalist" or "alluring vocalist"). This was probably a reference to the mythological abilities of a seiren (or siren) who was also half-female, half-bird. She was played by Anri Oonuki.