However, also being Zaichokanjin (local officials in the Heian and Kamakura periods), kaihatsu-ryoshu would remain inside the kokugaryo if they determined it would be advantageous for them to keep close ties with kokuga.
一方で、開発領主は在庁官人でもあり、国衙と結びつくのが有利な場合はそのまま国衙領にとどまった。