In 1333, as a messenger for Imperial Prince Moriyoshi, he delivered an anti-shogunate ryoji (Royal command from the prince) to his father Enshin, and the Akamatsu clan formed a force in Harima Province.
1333年、護良親王の使者として倒幕の令旨を父・円心に届け、赤松氏は播磨国で挙兵する。