In the periods of Northern Wei, Sui and Tang, Shinuhi who was incorporated in the ritsuryo system and was put under the control of the master, received restrictions including being disallowed to sue the master.
北魏・隋・唐代では、律令制に組み込まれ、私奴婢は主人の管理下にあり、その主人を訴える事ができないなどと定められていた。