The Build Divide: Demon Slayer Vol. 2 booster box is a Japanese trading card game set that features characters and scenes from the Demon Slayer anime, including new cards and abilities. Each box contains 16 booster packs, with each pack holding 7 random cards. This expansion adds to existing decks, offers new card rarities like high rare and secret, and includes unique illustrations. 
Product details
Product: Build Divide: Demon Slayer (Kimetsu no Yaiba) Vol. 2 booster box
Booster Box Contents: 16 booster packs
Booster Pack Contents: 7 cards per pack
Card Count: 72 total types + 72 parallel types
Language: Japanese
Manufacturer: Aniplex
Release Date: July 28, 2023 
Key features
New Cards: Introduces powerful new cards with unique abilities and strategies.
Characters & Scenes: Features characters and moments from the anime.
Rarities: Includes popular rarities like SC/PT and adds new designs for high rare/high rare parallels.
Artwork: Features six new illustrations from ufotable for divide rares and secrets, plus many different illustrations in other card types.
Enhanced Collection: The set has been enhanced with a large number of cards with different illustrations to improve the collection element.