Japan Post is no stranger to epic anime collaborations, having previously teamed up with giants like ">Attack on Titan, ">Yu-Gi-Oh!, and ">Neon Genesis Evangelion. Their co-branded merch often flies off the shelves, rivaling even major brand releases.
Now, they're joining forces with the wildly popular illustrator Nagano's creation, Chiikawa, for a super cute lineup of collaborative goods! Get ready for "Stamp + Postcard Sets," "Date Stamps," "Ink Pads," and "Stamp-Shaped Badges." Pre-orders kick off on April 20, 2026, exclusively at Japan Post's official "Post Office Online Store."

This collection perfectly blends Chiikawa characters with classic post office essentials. Think stamps, postcards, and even the date stamps and ink pads you'd find at any post office, plus those adorable stamp-shaped badges. The characters themselves are sporting brand-new post office staff outfits, making these items an absolute must-have for fans!

▼ Stamp + Postcard Set (8 designs total) Price: 1,320 JPY
Each set includes 2 framed stamps + 2 postcards. Postcard size: approx. 150×105mm.
※"Framed Stamp" is a registered trademark of Japan Post.


▼ Date Stamp L Size (8 designs total) Price: 4,950 JPY
Body size: approx. 38×38×147mm; Stamp surface size: 36×36mm.


▼ Date Stamp Koban-gata (Oval Type) (1 design) Price: 5,940 JPY
Body size: approx. 50×35×147mm; Stamp surface size: 48×32mm.

▼ Ink Pad (3 designs total) Price: 1,540 JPY
Case size: approx. 111×78×16mm; Ink surface size: approx. 90×55mm.



▼ Stamp-Shaped Badges (4 designs total) Price: 1,760 JPY
Set of 2, size: approx. 43×53mm.

via: 日本郵便官方「郵便局網路商店」 PR TIMES