in 1657 , the pressure from the opposing force in the edo shogunate and in the okayama domain caused him to resign from his post in the clan . 明暦3年(1657年)幕府と藩の反対派の圧力に耐えがたく、遂に岡山藩を去った。
after that yoshitoki hojo became shikken , tried hard to establish the power of hojo clan , but yoshimori wada , samurai-dokoro betto (the superior of the board of retainers ), appeared as an opposing force . この後、北条義時が執権となり、北条氏権力の確立に努めたが、侍所別当の和田義盛が対抗勢力として現れた。