I read it twice and have stored it at home in a dark room. Volume 23 may be slightly yellowed (see photo 3). ■ Immediate purchase is OK. ■ Please understand that this item has been stored at home before purchasing. Please refrain from purchasing if you are particularly concerned about this. ■ Please ask any questions before purchasing. ■ I am also selling on other sites, so I may delete the listing suddenly. ■ Items will be shipped in simple packaging. ■ Overseas products may occasionally have loose stitching or minor stains. ■ Discount for bulk purchases. ■ I do not smoke, and I do not have any pets. ■ Shipping may be delayed during long holidays due to the post office being closed. Thank you for your understanding.