Tono Chujo felt pity for his son Kashiwagi, who wanted to marry Onna Sannomiya, the younger sister of Onna Ninomiya by a different mother, so he pleaded with Emperor Suzaku to give his daughter in marriage to Kashiwagi.
異母妹・女三宮を得られなかった柏木(源氏物語)を哀れんだ父の頭中将が朱雀院に嘆願する。