Konbini Food Becomes Bungu in King Jim’s New Jim Mart Line

Onigiri and hot snacks are staples of the Japanese convenience store. Starting this month, they will also be bungu — the Japanese word for stationery, and a culture unto itself.

Japanese stationery company King Jim is launching Jim Mart, a new line of konbini-inspired stationery that turns some of the store’s most recognizable foods — and their packaging — into erasers, clips and message cards. The collection goes on sale Sept. 18, 2026.

The idea goes beyond simply printing an onigiri on a notebook. King Jim has recreated part of the experience of buying and opening the real thing. Its Onigiri Eraser and Onigiri Clip come inside triangular cases wrapped to resemble convenience-store rice balls, complete with packaging designed to be peeled open in much the same way. Inside are miniature erasers or clips.

Both sets come in designs representing four classic onigiri fillings — salmon, ume, tuna mayonnaise and fresh cod roe. Each is priced at ¥650 before tax.

The transformation from konbini to bungu continues at the hot-snack counter with Letter Hot Snack, a set of message cards that mimics the paper packaging used for fried chicken, corn dogs, karaage and french fries. Some tear open along perforations; others use flaps or convenience-store-style sealing stickers. Another range, Letter Onigiri, turns triangular and round onigiri into cards, tucked inside transparent wrappers with address labels designed to look like the stickers on actual rice-ball packaging.

King Jim suggests the series could also work as gifts or souvenirs for visitors drawn to Japan’s convenience stores. It is a fitting crossover: take two distinctly Japanese everyday pleasures — konbini and bungu — and put them in the same package.