yeah you do i did it once its kinda cheap but unless you live in japan you gotta use third party payment method cause the dont takes directly mastercard and visa (at least when i did it maybe its fine now)
The payment difficulties are the same reason why Ci-en can’t be used as a platform for sharing content for international creators.
I’ve read somewhere that there might be a way to purchase points or something that can then be used in the platform instead of money, this way you can use any payment method in other platforms, however I’ve no clue on the details.