Japan Iris Authentication:

Both the Tokyo Line and the Osaka Line are available, and the cost of Osaka should be less than half of Tokyo.
Preparations: 1. Passport and visa (low threshold, can be directly processed by searching for Youth Hostel visa service on Taobao) 2. Make a bank appointment to exchange some Japanese yen, around 5000-10000 should be enough, most places support our quick payment. 3. If you have an iPhone, you can directly register for a Watermelon Card, which is quite convenient. 4. Purchase a Japanese data card on Taobao, change the card and turn on the phone upon arrival. 5. Download Google Maps (very useful, can solve most problems)
Tokyo Line: When flying to Tokyo, you can stay in Ikebukuro, Osaki, and other places. There is a WLD coffee shop in Ikebukuro where the staff is from Xinjiang and can communicate in Mandarin. There are also many Chinese people in other shops. The housing prices here are relatively cheaper, usually ranging from 500-1500 RMB. There are many convenience stores in Japan, just like our pharmacies... After registration, you can go shopping in Tokyo. Accommodation usually needs to be booked in advance and it is generally not possible to check-in on the same day... Check-in is usually after 3 pm, and check-out is usually around 10-11 am in the morning. Everyone should check the hotel information to avoid unnecessary trouble.
Osaka Line: Friends flying to Osaka can stay near Shinsaibashi, which is considered a commercial street. There are several wld registration points nearby. There are many Chinese people in Osaka, so do not communicate too much and do not overly trust others when going out. Get your registration done and then have a good time on the commercial street. The price of spa in Osaka is also half of that in Tokyo [hmp]. Accommodation ranges from 300 to 800... Overall, it's half the price of Tokyo. Cost-effective, generally cheaper than Tokyo.
Friendly reminder: Everything else is not a problem, but if you take the subway, you need to pay attention to the transfer issue. Google Maps also provides guidance. Other obstacles are not significant... Many times, you need to get off and then get on at the same location. It will be fine after a few times of adaptation.
Wish you all a pleasant journey [可爱] [打call]