【Unopened】Gakken My Coach History Chronology Memorization CD with Chronology Memorization Book

Also listed on other flea market apps.

This is a Gakken My Coach History Chronology Memorization CD that I received several decades ago.
A chronology memorization book is also included.
It is an unopened item that has been stored in a dark place at home, but due to long-term storage, the bag has minor scratches, signs of use, and discoloration.
In particular, the adhesive part of the bag shows noticeable discoloration and dirt (photos 3-5).
Please be aware of this in advance.

If you have any questions, please feel free to ask in the comments.