In the formation process of the Edo bakufu through the Muromachi, Sengoku, and Azuchi-Momoyama period, the area where the bushi were in charge of the official authority gradually and continuously increased.
室町時代・戦国時代(日本)・安土桃山時代を経て江戸幕府成立に至る過程で、次第に武士が公権力を担う領域は拡大し続けた。