I’m so glad I was finally able to get this book (digital version) from BookLive (thanks to these two posts!)!
BookLive has a reader app, that unfortunately is not available for my country, but I can still read using their browser reader, even on mobile. To sign up I didn’t have to provide a Japanese address (plus there was a much appreciated 50% off welcome coupon!). They had different payment options including credit card, I chose to pay using Google Pay to handle the credit card info and it worked alright.
So, yes, I’ll be joining the bookclub in February! It’s my first bookclub, looking forward to the challenge! 