The more detailed the necessary things for Japanese tourism, the better.

Documents: passport and visa, flight, hotel reservation form, embassy telephone number, etc. It is best to make another one, just in case;

Necessities of life:

Toilet-Japanese hotels don't prepare disposable toiletries for their guests, so they need to bring them themselves, or they can buy them in supermarkets in Japan, but if the plane arrives in Japan late, they still need to bring them themselves;

Necessary items-sunscreen, umbrella (it often rains in Japan), slippers (not provided in Japanese hotels)

Adapter: The voltage in Japan is100V, and the socket is a two-pin socket. Cylindrical plugs and tripod plugs are not available in Japan, so it is recommended to buy conversion plugs in advance. Some hotels have adapters at the front desk. The power supply in Japan is double-headed, and the notebook power supply bought in China is three-headed, so it can't be used. Be sure to remember to switch heads three to two.

Bank card: Check the Japanese exchange rate in advance, exchange Japanese yen at home in advance, and let the Bank of China exchange it. Don't change with the tour guide, you will lose money. Bring a certain amount of Japanese yen, and then bring UnionPay card /VISA card. Carry at least 10000-20000 yen with you. Many Japanese ATMs don't know about foreign cards. In addition, many institutions do not accept credit cards.