At that time, Saiakira thought to make Yoshinobu TOKUGAWA the fourteenth Shogun through the legal wife of the Shogun, and to make the system in which power was centralized with the active Daimyo Feudal Lord, and to make the country prosperous and build a strong army, so that the country could be opened up and deal with foreign countries like Russia, Great Britain and France, and it was a magnificent plan that included a contingency for alliance with Japan, China and Korea.
この頃の斉彬の考え方は、将軍正室を通じて一橋家の徳川慶喜を第14代将軍にし、賢侯の協力と公武親和によって幕府を中心とした中央集権体制を作り、開国して富国強兵をはかって露英仏など諸外国に対処しようとするもので、日中韓同盟をも視野にいれた壮大な計画であった。