Please comment before purchasing as I am also selling on other platforms. ★ Single item purchases are not allowed. I plan to lower the price to 680 yen, but if the price is already at that level, a replacement will cost an additional 50 yen. The price is determined by occasionally searching for the book title and setting the price at +150 to 200 yen from the price of the books being sold. Therefore, the price may be lowered or raised. ★ There is no price change for the replacement of used books, including new releases, in a set. (If you wish to replace, please specify the title of the new release and write that you want to replace it with the used book of ○○) You can also choose one book from the 2 books for 600 yen sale, excluding sets by the same author, but please "like" them so they are easy to find. ★ For replacements from the page "Bundled, Available for Individual Sale, Replacement with Sets Including New Releases", it's +40 yen. ★ Replacement from the 2023 release page is +100 yen. ★ Replacement from the 2024 release page is +200 yen. (In any case, replacement is possible without price changes for sets of 800 yen or more.) ★ For sets of new releases, the set price for new releases is 1250 yen including shipping, up to the set price of 800 yen. ★ Please do not ask for the price based on the above. If you want a new release set, I will immediately create a dedicated listing, so please purchase within 5 hours. ★ If you are unsure about which used book to replace, you can purchase first and select it up to 2 days before the shipping deadline. Please check the target books below. There are people who check the stock for fun, so those with no transaction history or a single-digit number of transactions must purchase within 2 hours after the reply. Others, please purchase within 6 hours. (If you comment late at night, I will create a dedicated listing in the early morning, so please purchase immediately after waking up.) ★ The author's name in the title is a new release. ★ Important requests regarding transactions are written, so please be sure to check the profile and, after agreeing, write "[Profile checked]", and after purchasing, please send a message, even if it's just a word. ★ Regarding convenience store payments, please pay within 24 hours! ★ I get mentally down when you decline after I calculate the price (T-T) ★ There are people who decline after inquiries, so please be sure to check the price yourself before commenting. After commenting, creating a dedicated page → immediate purchase is prohibited. ★ Returns are not accepted for any reason. ★ Price reduction requests are not accepted.