At the time she accompanied the Imperial Princess who went to see the cherry blossoms at Hosho-ji Temple when Kozaisho was 16 years old (around 1179?), the Assistant Master of the Consort's Household Michimori saw Kozaisho and fell in love with her at first sight.
彼女が16歳のとき（治承3年（1179年）頃？）に法勝寺の花見にお供した際に、これを見た中宮亮通盛は彼女に一目ぼれした。