One night, Yorimasa, together with his retainer I no Hayata (written as 猪早太 or 井早太), ventured out to kill the mysterious creature with the bow that was inherited from his ancestor MINAMOTO no Yorimitsu.
頼政はある夜、家来の猪早太（井早太との表記もある）を連れ、先祖の源頼光より受け継いだ弓を手にして怪物退治に出向いた。