After the victory in the Battle of Toba and Fushimi, the new government set up seven departments under the three offices, which were later organized into the Three Offices Eight Bureaus system besides tracking down and killing Tokugawa Family (for more details, refer to Government Organization in Modern Japan, Early Meiji Period).
鳥羽・伏見の戦いに勝利した新政府は、徳川家追討とともに新たな行政制度を整える必要から三職の下に七科を設置、のちに三職八局制となる（詳細は近代日本の官制明治時代初期を参照）。