Why buy Japanese Pokémon cards?
They come first
New sets usually launch in Japan before English versions follow, so Japanese boxes are how collectors get the newest cards early.
Japan-only sets
Some special sets and promos are released only in Japan, and some of them are very popular with collectors.
A different format
Japanese booster boxes usually hold 30 packs of five cards. Many collectors also like the printing and card quality of the Japanese versions.
Know what you are buying
Japanese cards are in Japanese. Check the set code, language and product type on each listing before you order.