After the Second Neo Zeon War, also known as "Char's Rebellion", ended, the Earth Sphere achieved a brief peace. Three years later, in the year 0096 of the Universal Century, a secret negotiation was held on the industrial colony "Industrial 7". The content was that the "Bicester Foundation", which was believed to be secretly controlled by the Earth Federation Government, would hand over the top-secret "Laplace Box" to the remnant army "Sodefu" of Neo Zeon. On the other hand, Banagher Links, a teenager studying at Anaheim Industrial College, met a girl who called herself Audrey Ben (actually the daughter of Dozle Zabi, the second son of the old Principality of Zeon, Minaba Zabi). In order to prevent the outbreak of a new war, Audrey had to organize the transaction of "Laplace Box". After helping Audrey several times, Banagher gradually became attracted to her. Subsequently, the Earth Federation noticed the transaction and intervened militarily, and the industrial colony immediately turned into a sea of fire. Banagher and his companions took refuge while searching for Audrey, and before him appeared Cardeas Bist, the head of the Bist Foundation. The dying Cardeas told Banagher the secret of his birth, and entrusted him with the key to the box - "Mobile Suit Gundam Unicorn". Then, a war over "Laplace's Box" began...