Individual sales are possible. One book is 300 yen. If you wish to purchase individual books, please let me know in the comments. I will change the price and photos before you buy. These books have been stored without being in a file for many years, so there are some stains and yellowing on the white margins. The photos show the areas with the most noticeable issues. Please take a look at the photos and only purchase if you are satisfied with the condition.