Can I make a phone call when I buy a sim card at the Japanese airport?

I can't. According to Zhihu's inquiry, Japan is a combination of card and machine, and it is rented as a whole. When you arrive, you can rent a mobile phone at the airport, or have a network card such as skype, rent a portable wifi, have a network at any time, and make calls at any time. Japan, the capital of Tokyo for short, is located on the west coast of the Pacific Ocean. It is an arc island country extending from northeast to southwest, including Hokkaido, Honshu, Shikoku, Kyushu and more than 6,800 other small islands, with a total area of 378,000 square kilometers.