You are in luck OP. I'm currently in Japan and your dedication has moved me so I jumped through all these hoops to register and buy the tracks on that shitty website.
I had to use a japanese prepaid virtual credit card (withdraw cash and deposit it in the virtual card at a conbini) in the end because my european mastercard was getting denied (even though I was billed 1 yen successfully).
Anyway, enjoy!
https://mega.nz/file/m0YjGThD#KhvZizhfz1HwdIAVhaDn2_9Sd4z-rER6mRBEXKfJ0MM PS: I will enjoy them live today.
