Mokudai was a deputy, such as a retainer, sent to the post in behalf of an appointed provincial governor who remained at his place from mid Heian period to Kamakura period.
目代（もくだい）とは、日本の平安時代中期から鎌倉時代に、遙任国司が現地に私的な代官派遣した家人などの代理人のことである。