Despite the overwhelming number of troops, Yoshisada struggled to tear apart Shirahata-jo Castle, in which Norimura and his 2,000 warriors cloistered themselves; Yoshisada was tied up for more than 50 days.
そのため、則村以下2千の兵が立て籠る白旗城を義貞は圧倒的な兵力を持ちながら攻めあぐね、50日以上釘付けにされた。