After the Taika reform, the positions of Kuni no miyatsuko became honorary, succeeded by heredity, as many kuni no miyatsuko dedicated themselves to preside over religious ceremenies, and the conventional duties of Kunino no miyatsuko were took over by Gunji accordingly
大化の改新以降は世襲制の名誉職、主に祭祀を司るものになり、従来の国造の職務は郡司に置き換えられた。