In the period from the late ninth century to the beginning of the tenth century, when the regency became established, there were no particular threats either at home or abroad because the country took an isolationist policy toward foreign countries, and domestically, the subjugation of the Emishi (Japanese northerners) was almost completed, and the administration had entered a period of stability.
摂関政治が確立し始めた9世紀後期から10世紀初頭にかけては、国外へは鎖国主義を採り、国内でも蝦夷侵略がほぼ終結するなど、国内外に大きな脅威がなくなり、国政も安定期に入っていた。