The Lord Keeper of the Privy Seal of Japan (内大臣, Naidaijin) was an administrative post not of Cabinet rank in the government of the Empire of Japan, responsible for being a direct, personal advisor to the emperor, and keeping the Privy Seal of Japan and State Seal of Japan among other things.
The modern office of the Lord Keeper of the Privy Seal was identical to the old Naidaijin only in name and should not be confused.[1] The office was abolished in 1945 after World War II.