Despite thorough examination of provided materials, the character "Memu" remains undocumented in *UFO Ultramaiden Valkyrie 4: Banquet of Time, Dreams, and Galaxies* and related media. Character lists, plot summaries, and production details extensively cover primary figures like Valkyrie, Kazuto Tokino, Hydra, Sanada, Akina Nanamura, Rika Tokino, Mar, and Spot, alongside Season 4's secondary characters including Ymir, Princess Pharm, and Inarba. No references to "Memu" exist in any documented capacity.