This is an optional item purchased in the 2024 school year for the Challenge program. It's the autumn issue, so it arrived around this time last year. I was overwhelmed with homework from my塾 (cram school), so I kept it stored in the original bag it came in. I opened it today for the photos. Retail price: 980 yen It's unused, but please refrain from purchasing if you are concerned about home storage. Thank you.