Then there is the credit card problem. Although your card has JCB, most stores on Lotte use Lotte KC's credit card system, which conflicts with overseas credit cards. Because there are many frauds, not all of them will fail, and the probability of failure is relatively high. We also met a customer who failed to use the Lotte system card, but he could use his own system to deliver the results or send them to him at some risk. You can ask the store if you can swipe your card. If you can, tell him the validity period of the card number and the name can be swiped.
Another way is to use a purchasing agent, such as tenso.com, where you can buy and send them on your behalf, just settle with them, with a little more handling fee.