Kunuhi were subdivided into two types; those who inherited this status and those who had been reduced due to a penalty for a criminal act, both of which were pardoned to return to the Ryomin when they became 60 years old and 76 years old, respectively.
官奴婢には古来からのものと犯罪によって落とされた二種類があり､それぞれ60歳・76歳で良民に復帰できた。