Does the Japanese Prime minister have bodyguards?
The Prime Minister is protected by officers of the Security Bureau and Security Section of the Tokyo Metropolitan Police Department. They are select police officers . Since becoming a police officer is a civil service job, you need to be a Japanese national in order to apply to become a Police Officer, then after being a police officer you need to probably demonstrate additional skills and be specifically selected for additional training. In short, odds of seeing a foreigner protecting the prime minister of Japan (while in Japan): zero.