However, Tadafusa believed Yoritomo's lie that 'he owed Shigemori an old favor and would spare his son's life,' so surrendered and turned himself in at Kamakura.
しかし「重盛には旧恩があり、その息子は助命する」という頼朝の偽りの誘いを受けて降人となり、鎌倉に出頭する。