Because the Ashikaga side searched for descendants of the Southern Court and killed them as soon as they found them, he moved to Makihira Daimon, Nukata district (present Daimon, Makihira-cho, Okazaki City, Aichi Prefecture) because of fears for his security and buried the Three Sacred Treasures of the Imperial Family in the ground and took the family name of the Empress Saku-hime MIURA (legitimate daughter of the Miura clan of the Fuji Daiguji family who played an active part in Kenmu Restoration) and called himself Todayu MIURA and became a simple peasant.
、足利方が南朝の後胤を探索し見つけ次第殺害したため、身の危険を避けるため額田郡牧平大門（愛知県岡崎市牧平町大門）に移住し、三種の神器を地下に埋蔵し、皇后・三浦佐久姫（建武の中興で活躍した富士大宮司家、三浦氏の嫡女）の姓を名乗り、三浦藤太夫と称し純然たる百姓となった。