For more analysis on this story, we are joined in the studio now by Teng Jianqun from the China Institute of International Studies.

Q1: It will take a parliamentary decision for the Japanese emperor to stand down. What could be the social and political implications if the emperor does hand over power after 27 years on the throne?   

Q2: Despite being officially barred from making political comments, Emperor Akihito has often tried to get his views across. For example, he expressed "deep remorse" for Japan's actions in WWII, something of a departure from Prime Minister Shinzo Abe's stance. What do you think will be Akihito's greatest legacy?