In Universal Century 0079, Oliver May works as a technical officer in the Zeon 603rd Technical Evaluation Unit. His responsibilities entail evaluating novel military technology. Though his work is carried out aboard the Jotunheim, a transport vessel converted for military purposes, Oliver finds himself thrust into battle. This time, however, he views the One Year War through the lens of a weapon tester, grappling with the challenges of making a difference in a changing landscape of war.