Meanwhile, although there are different versions of "Heiji Monogatari," written during the Kamakura period, indicating that Tokiwa and Kiyomori had a sexual relationship, giving birth to a daughter, there is no record that Tokiwa's children were spared their lives because she agreed to become Kiyomori's concubine.
しかし鎌倉時代に成立した『平治物語』諸本においては、常盤と清盛が男女の関係となり一女をもうけたという内容は記されているが、常盤が清盛の意に従う事と子供達の助命の因果関係は記されてない。