Do I need to bring an adapter to Japan?

There is no need to bring an adapter. The socket in Japan is a double-angle socket, and there are two kinds of sockets in China: double-angle socket and triple-flat socket. Domestic mobile phone charger, SLR, etc. You can use the Japanese socket directly, without taking it. Most hotels in Japan provide national standard converters. Japan, the capital of Tokyo for short, is an arc-shaped island country located on the west coast of the Pacific Ocean, extending from northeast to southwest, including Hokkaido, Honshu, Shikoku and Kyushu, and more than 6,800 small islands. Japan is a highly developed modern country, one of the four largest economies in the world and the only Asian country in the Group of Seven. Its overseas assets are twice the gross domestic product and it is the largest creditor country in the world.