When Shigeyasu, who was staying in Kamakura after having been invited by INAGE no Nyudo from the Chichibu clan, rushed to Yuigahama with his three vassals, Yoshimura MIURA, under orders from Tokimasa, made Taro Sakuma and others surround Shigeyasu.
同じ秩父氏の稲毛入道に招かれて鎌倉にいた重保も郎従3人と共に由比ヶ浜へ駆けつけると、時政の意を受けた三浦義村が佐久間太郎らに重保を取り囲ませる。