Card Shop Hacchi’s online store specializes in Union Arena trading cards, serving players and collectors with a broad selection of cards and related products. Its catalog covers many featured series, including Re:Zero, BLEACH, Demon Slayer, Sword Art Online, Macross, and numerous other anime, manga, and game franchises. Shoppers can browse by title, set, card rarity, and product type, with listings that include individual cards, promotional cards, starter and advanced decks, and deck bundles.

The store also offers collectible high-rarity cards, including examples professionally graded PSA 10, alongside selected cards marked as having condition issues or special condition grades. New arrivals, recommended items, and popular products are highlighted to help customers explore the range. Product pages display prices and stock availability, and customers can add available items to an online cart, create an account, or log in.

The site also provides information about card condition, shipping costs, and ordering procedures, with announcements about service changes and a contact option