In the reformation of the shogunate government in 1867, at the end of the Edo period, the tsukibansei system (in which one of the Roju was in charge of daily affairs in monthly rotation) was abolished and a new system was established in which each of five presidents was exclusively responsible for domestic affairs, accounting, foreign affairs, the army, or the navy.
1867年（慶応3年）に幕末の幕政改革で月番制を廃止し、国内事務・会計・外国事務・陸軍・海軍の5人の総裁がそれぞれ専任する体制となった。