While Ieyasu was only a small daimyo (Japanese feudal lord) who ruled only two provinces of Mikawa and Totomi Provinces, Nobunaga no longer needed power of Ieyasu as he already had the power to rule the entire Japan.
それに対して家康は、三河と遠江国の二ヶ国だけを支配する小大名でしかなく、もはや家康の力など必要としなくても信長には天下を統べる実力を保持していた。