Size: 約H256.5xW181mm

Today’s feature: the adorable B5 下敷き (shitajiki) lineup! 💖 These writing boards were part of Granup’s Balloon Flight merchandise wave — each design highlighting a different piece of the vibrant anniversary art set.

Just like the Shikishi, casuals could pick up blind bags to get a random design, and collectors to buy a box, containing the complete set of  8. This set also did not contain any “hidden” designs.

✨ What’s a Shitajiki?

In Japan, a shitajiki is a thin plastic board slipped under your notebook page to keep your handwriting smooth and neat. Collectors love them for their glossy, high-quality prints — they’re basically mini posters disguised as stationery!

Just like the shikishi boards, this set contains much of the same designs: two of each Nyanki (a close-up and full body illustration), one group image, and one panel-style design with close-ups of the main three — all with that candy-bright Granup color palette that absolutely pops. 🍬

📏 Size: H120 × W150 × D60 mm

💴 Original price: ¥1,980 (tax included)

📦 Release: GRANUP “Balloon Flight” collaboration, 2023.

🎨 Design: Full-color sublimation print with “CATNINDEN TEYANDEE” text and wave motif background

The Balloon Flight collaboration keeps soaring!

This sturdy, zippered Square Pouch features the full Nyanki trio — Yattaro, Pururun, and Sukashii — printed in bold color across a soft textile surface. The reverse side is a clean white, bordered in deep blue, with a structured silhouette that makes it great for both display and storage.

Soft polyester exterior with a padded interior and single main compartment. The shape holds its form well — ideal for cosmetics, cords, game accessories, or small collector items. I currently use mine to store 3 CDs (first performance, final performance and APPALE - I’ll be covering APPALE, next month), and a complete set of shikishi.

In Japan, collaboration pouches (コラボポーチ) are often designed around A5 to A6-friendly proportions, allowing collectors to use them for a wide range of goods — from CDs and trading cards to limited-run artboards (shikishi, 色紙).

• Many use sublimation printing (昇華転写) for rich, fade-resistant color that bonds directly with the fabric.

• They’re typically event-exclusive or part of a short production wave, making each design a one-time print run.

• Their boxy design is intentional — it protects keepsakes like acrylics, postcards, and shikishi from bending or rubbing, which makes them ideal archival accessories for collectors who also want their display setups to stay coordinated.

Essentially, they blur the line between merch case and collector’s toolkit — durable, vibrant, and perfectly sized for anime memorabilia.