The Gundam Vual Yuhana was prepared by Gianmarco Salerno to support Argi Mirage. The Gundam Vual was stripped of its armor and equipment after its defeat, and was tailored to Sampo’s order when he was selected to be its pilot. The suit's name came about as Sampo's sister, Yuhana, had registered it without permission. Its output was improved and it was equipped with a sword and a chopper that can be combined into a halberd, a pair of foldable chainsaws, and a 210mm anti-material rifle for long range support.
After the Gundam Vual was defeated, it was stripped of its armor to help restore the Gundam Astaroth to its original look. The armorless Gundam Vual was later recovered by Gianmarco Salerno and retrofitted into the Gundam Vual Yuhana, piloted by Sampo Hakuri, to assist the ASW-G-29 Gundam Astaroth Rinascimento.