Atsushi Sawasaki was the former Chief Cabinet Secretary of the Kururugi Administration. He fled to the Chinese Federation after Japan surrendered and was taken over by the Holy Britannian Empire. After the civil unrest caused by Zero the leader of the Black Knights, he announced the resurrection of Japan from the Fukada Base in Kyushu. He along with General Tsao plan on using Kyushu as a starting point to take back Japan. However Major Suzaku Kururugi's Lancelot and Zero's Gawain manage to take the Base and capture Sawasaki as well as General Cao while the two tries to escape back to the Chinese Federation. He is then taken into custody along with the former members of the Japanese Government by the Britannian forces.