Board Thread:Love Live! School Idol Festival Lounge/@comment-33241327-20171003112655

This is kinda embarrassing. So I want to sell my SIF account, but I never have sold SIF accs, so it would help me a lot if somebody could tell me how selling works and how google play cards work. (Sorry I don't have any experience in this Ｔ▽Ｔ ) 