As Yachihoko no kami (Okuninushi) wanted to marry Nunakawa hime who lived in rivers and marshes in the Koshi Province, he went to Koshi no kuni and composed a poem of a marriage proposal outside the house of Nunakawa hime.
八千矛神（大国主）が越国の沼河に住む沼河比売を妻にしようと思い、高志国に出かけて沼河比売の家の外から求婚の歌を詠んだ。