 When that opportunity presented itself in 1419, after three Hokuzan "aji" (local lords) turned to his side, Hashi led his father's army, and conquered Nakijin in a swift series of attacks.The chief of Hokuzan, along with his closest retainers, committed suicide after a fierce resistance.A year after his father's death in 1421, Hashi requested official recognition and investiture from the Chinese imperial court, and received it in due course.