Why? How come? Everyday Questions 5th Grade, 6th Grade Gakken ⚠️With clear book cover *Used, so there are scratches, etc. Please refrain from purchasing if you are sensitive to this. (Please be sure to check the photos) 【Instant purchase OK】 If you wish to combine items, please apply using the "request to buy in bulk" function for a smooth transaction. *Due to shipping costs, we cannot sell items separately. Thank you for your understanding. *This is a home-stored item, so please refrain from purchasing if you are looking for a perfect item.