ADVANCE OF Ζ 刻に抗いし者, Advance of Z: Toki ni Aragaishi Mono, Advance of Ze, Advance of Zeta - Toki ni Aragaishi Mono, Advance of Zeta: The Traitor to Destiny, Advance of Zeta: Toki ni Aragaishi Mono, 機動戦士Zガンダム外伝 アドバンス・オブ・Z 刻に抗いし者
In the year UC 0079, during the One Year War of the first Gundam series and eight years before the story in Zeta Gundam, a boy named Van Asiliaino and his friends attempt to flee the war, and their fates change when they meet a certain soldier.