In addition, limited-edition original merchandise available only at the café will be sold. These special items, including acrylic stands, acrylic plate keychains, hologram cards, and pin badges, are expected to draw significant interest from fans. Customers who purchase collaboration merchandise or menu items will receive limited-edition benefits based on their spending, available while supplies last.

A representative from Level Infinite stated, "We hope players cherish special memories with Nikke through the unique atmosphere and collectible limited-edition goods found only at our collaboration café," adding, "We plan to continue hosting various offline events to expand touchpoints where users can experience Nikke in their daily lives and provide diverse forms of enjoyment."