This is a red book I accidentally purchased. The 2026 edition is brand new and unused, with no stains. The 2025 edition has folded corners as shown in the photos, but there is no writing in it! The price is set slightly lower than the list price, considering it's new and unused. If you wish to purchase them separately, please contact me in the comments. Good luck to all university entrance exam students! Let's do our best together!