In recent years, Japan has become increasingly cashless, and e-money, including various types of Pay, is being used in an increasing number of situations. Among the most well-known are transportation-related E-money, which are used mainly for trains, buses, and other forms of transportation. Once you get used to it, it is a very convenient card, but for first-time users, you may be asking yourself, "How do I buy something? How do I use it? How can I add on money?" Many people must feel uneasy about it. This article will answer the above questions about ICOCA, which is highly used in Kansai, especially in Osaka and Kyoto.