Treshia is a trading card information service presented by 攻略大百科, bringing together tools for exploring market prices and related card data. Its focus includes Pokémon cards, with dedicated information on prices, rankings, and unopened booster boxes. By gathering these topics in one place, Treshia gives visitors a starting point for checking the market and comparing the kinds of products and cards that interest them.

The service is identified as a Service Portal, and its stated scope centers on trading card market tools rather than a broad range of unrelated offerings. Visitors can use the portal to browse Pokémon card price information, see rankings, and look into unopened boxes. The site also links to the operating company and to 攻略大百科’s account on X, formerly Twitter.

Treshia is powered by Zender Inc., which is credited in the site footer. Overall, it serves card enthusiasts seeking a convenient reference for Pokémon card market information and unopened-box listings