Step into the world of Demon Slayer with the 2026 Kayou Wave 1 Tier 4 Booster Box, designed for collectors who demand premium hits and high rarity pulls. Tier 4 boxes are known for offering better pull rates and exclusive high-end cards, making them one of the most sought-after formats among serious collectors. Each sealed booster box contains 10 packs, with 3 cards per pack, giving you multiple chances to uncover rare, foil, and limited-edition cards featuring your favorite Demon Slayer characters. Whether you’re building your collection, chasing rare hits, or investing in anime trading cards, this box delivers an exciting unboxing experience every time.