Can’t buy in-app purchases – Forbidden Romance:The Amazing Shinsengumi Review

I’m really liking this idea of this, but every time I try to buy the additional chapters, I get an error. The support for the game is in Japanese, no help at all. If you are going to have this available for your English customers, fix the issue.
Review by JoJo Birdie on Forbidden Romance:The Amazing Shinsengumi.