Human Academy Medical Office Assistant Course, Claims Payment Processing Skills Certification Exam Preparation Set Course, 2024-25 edition, complete set. It cost nearly 50,000 yen. Purchased in March of this year. Only the claims payment processing textbook was used, so the cover is slightly warped. There are no markings. The rest is unused and in good condition. I stopped pursuing the certification halfway through, so I haven't used it much.