Tenente Nexx Gilbert is an elite variable fighter pilot for the U.N. Spacy, possessing combat skills considered unmatched among Earth's defenders. His widespread popularity and celebrity status within Earth's society contribute to a noticeable degree of narcissism. Despite this, his feelings for fellow ace pilot Silvie Gena are sincere and heartfelt; their relationship remains in its early stages, limited to a few dates. During the lunar battle against the Marduk invasion, Nexx pilots the advanced VA-1SS Metal Siren prototype variable fighter, proving its capabilities in combat. When the Marduk launch their final assault on Earth, Nexx transitions to a command role, taking charge of one of the deployed Macross Cannon warships. Members of Silvie Gena's Faerie Squadron—specifically Saori, Amy, and Nastasha—serve under his direct command during this critical defense operation.