During the Universal Century's 0079, the Earth Federation launches Operation Odessa to reclaim a pivotal Ukrainian city from the Principality of Zeon, marking a turning point in the One Year War. Ensign Shiro Amada is reassigned to lead the 08th MS Team, a special unit piloting RX-79G Gundam Ground Types in Southeast Asia. Tasked with disrupting Zeon forces, Shiro's mission takes a personal turn when he encounters Aina Sahalin, an exceptional Zeon pilot from a prior encounter. Their unexpected meeting challenges Shiro's convictions, forcing him to navigate loyalty, duty, and the thin line between friend and foe in the heat of battle.