The pop-up shop “-Arcana Sign-,” part of the “Hundred Note” cross-media project presented by Kodansha, will open sequentially starting October 2, 2026, at HMV&BOOKS SHIBUYA, HMV Sakae, and HMV&BOOKS NAMBA! The shop will feature items such as glittery acrylic stands, double-sided acrylic keychains, and necklaces with mysterious, tarot-inspired designs. Customers will receive a random “bookmark” (15 varieties total) with every 3,000 yen (tax included) purchase made in-store.