Is it difficult for the Immigration Bureau to be seconded to other units?

Secondment to other institutions is simple and complicated.

The first thing depends on who wants to be seconded. If the employer wants to lend you a job, it's easy. Basically can be ignored, just wait for the good news. It's just that the leaders of two units are communicating. If you want to change your organization, you must first communicate with the leader of the unit you want to go to and agree to accept you, and then go back to the original unit and talk to the leader. Both units have agreed, and the seconded unit (some even the government personnel department) has issued a loan letter to your original unit, and everything is ready!