One Year War
Asakura is a Principality of Zeon officer who is involved with the military's Research and Development of weapons and technology. Following the loss of Odessa and Solomon, the Zeon military was on the defensive. After witnessing the effectiveness of the Earth Federation's Solar System during the Battle of Solomon and fearing the Federation's next move would be a full-scale assault on the home colonies, Zeon's Supreme Commander Gihren Zabi ordered the construction of a massive solar powered beam projector known as the Solar Ray System. The project originally started in the Mahal colony in September 0079, exploiting the same loophole in the Antarctic Treaty as the Federation's Solar System. Supervised by Colonel Asakura, who had also developed Zeon's lethal G3 Gas, a nerve agent used in the genocidal assaults against Side 2, solar batteries from other colonies were collected and a projection array was built within the colony walls. Although intended for use against the Federation this weapon was only used once against Degwin Sodo Zabi while his fleet and General Revil's fleet were meeting to negotiate a peace. The premature firing of the Solar Ray Cannon by Gihren Zabi caused the Colony Laser to burn out, which contributed to the Principality of Zeon's loss during the Battle of A Baoa Qu by depriving Gihren and Kycilia Zabi the ability to strike at the Federation from a distance.
After he reports to Gihren on the status of the Solar Ray system, Asakura awaits his next order; however, no further order comes. With Zeon's defeat imminent, and his role in creating and using weapons of mass destruction, Asakura flees the battlefield. He is pursued by Commander Cima Garahau, the leader of the Zeon Marines assigned to Asakura, who hopes to take revenge on him; Asakusa had used her and her marines' home colony as the structure for the Solar Ray. Despite her efforts, Asakusa successfully escaped the battlefield. After the end of hostilities, Asakura avoids punishment by blaming the gassing of Side 2 on Cima and her marines.