Surprised, Masakado accepted the official document, and submitted his own documents, dated May 28, as proof that for the local governments of the five provinces of Hitachi, Shimosa, Shimotsuke, Musashi and Kozuke "the suspicion of rebellion is completely groundless".
驚いた将門は上書を認め、同年5月2日付けで、常陸・下総・下野・武蔵・上野5カ国の国府の「謀反は事実無根」との証明書をそえて送った。