Kamununakawamimi no Mikoto was informed of this plan through a poem written by his mother, and together with Kamuyaimimi no Mikoto, his elder brother born of the same mother, he attacked Tagishimimi no Mikoto in his home in Kataoka (present-day Oji-cho in Kitatsuragi-gun, Nara Prefecture).
神渟名川耳尊は母の歌からこのことを察知し、同母兄の神八井耳命（かむやいみみのみこと）とともに片丘（現在の奈良県北葛城郡王寺町）の大窖にいる手研耳を襲い、これを討った。