1947. On a beach in Normandy, Madeleine, a waitress and young mother, meets François, a wealthy, and cultivated student. They hit it off immediately, as though it were fate. But as their destinies intertwine, it’s obvious what Madeline …
故事的舞台是在战争中被破坏的基地殖民地、飘荡着大量战舰的残骸的“Thunderbolt宙域”,宙域是对ZEON公国要塞“A Bao A Qu”的补给道路,为了夺回宙域,地球连邦军和ZEON公国展开了激烈的战斗。地球连邦军的伊奥·弗莱明少尉等人乘坐GM204F,潜入Thunderbolt宙域,向狙击手发起了挑战。