It is said that since the child between her and Kiyomori was a girl, she swapped her biological child with the child of an umbrella seller in Kyo to please Kiyomori, who wanted to have a son.
清盛との間にできた子が女子であったため、男子を望んでいた清盛のことを考え、京の傘売りの子と実子を取り替えたのだという。