Undoubtedly, both the principal part (during Emperor Go-Ichijo's reign, around 1024 - 1028) and the sequel (from the end of the eleventh century to the beginning of the twelfth century) were written by women at court.
正編は後一条天皇の万寿（1024年-1028年）の頃、続編は11世紀末から12世紀初頭にかけて、宮廷女性の手によって完成されたことに違いはない。