Mayu Shinjo's oneshot story Zeon Koukoku Younen Gakkou has been published in the third issue of the shounen magazine Gundam Ace. This oneshot story labelled as EPISODE 0 shows the growth of two boys. They grow up in the Army Cadet school. This oneshot story draws the cruel fate imposed on those boys.
The actual series will start from the fifth issue of Gundam Ace magazine. The story is set in the year Universal Century 0079 and follows the story of five boys who share a sense of camaraderie, war and duty.