This is an official trading card set. I remember that it was a limited release of several thousand to tens of thousands of boxes at the time of its release (I believe it was limited to 15,000 boxes). In Japan, there are few people selling them, so I think it's quite rare. Contents: 14 cards in the style of 80's retro posters This is a complete set of 80's retro poster-style cards. There are 4 packs in a box, and 8 cards in a pack, so it was a series where it was difficult to complete the full set with just one box.