Otonari Mart, a new-format store (fast food & lifestyle store) by Beisia Co., Ltd., is set to open its first-ever POPUP store in the Tokyo area at the "Shibuya Tokyu Food Show" ThisWeek3 space from Thursday, May 28 to Wednesday, June 3, 2026 — a limited seven-day run.
The store is built around the concept of enriching each person's individual dining scene. From guilt-inducing-but-addictive food and drinks to health-conscious original products, Otonari Mart caters to solo dining needs with approachable sizing and pricing.
At the POPUP store, a selection of popular items from the brand's flagship store lineup will be on offer, giving visitors a chance to experience Otonari Mart's flavors and brand concept. Exclusive POPUP set deals will also be available.
Products at the POPUP Store
Kaburi-tsuku! Katsudon Series & Agaru Drink Series (Fast Food Counter)

The "Kaburi-tsuku! Katsudon Series" reimagines the classic katsudon rice bowl as a one-handed, bite-into-it format. Customers can choose from a variety of sauces and toppings. Each order is made fresh: a warm pork fillet katsudon is dipped into an original sauce right before serving, delivering a texture that is simultaneously crispy and tender. All base sauces are made in-house and were developed with inspiration from the Gunma soul food dish of sauce katsudon.

The "Agaru Drink Series" features dessert-style energy drinks made with Otonari's original energy liquid. A team of sommeliers, bartenders, and chefs worked on the recipe using cocktail-balancing techniques to minimize the distinctive aroma typically associated with energy drinks. The result is a visually appealing, great-tasting drink designed to give a boost of positive energy.
Original Products from the Lifestyle-Style Store
Rice Companions (Gohan no Otomo)

A series of original accompaniments designed to make rice even more enjoyable. At the flagship store, 29 items are currently on offer — not just as rice toppings, but also as add-on seasonings and handy condiments. The POPUP store will carry 6 popular items from the lineup.
Bread Companions (Pan no Otomo)

Jams, spreads, compotes, and more — this collection focuses on distinctive ingredients, great taste, ease of use, and formats that make solo breakfasts more enjoyable. Six items will be available at the POPUP store.
Guilt-Free Salad (Tsumi no Nai Salad)

A new approach to eating salad — straight from the bag. The stand-pouch packaging is washed using electrolyzed water, eliminating any unpleasant odor. The concept is to make salads easy and genuinely enjoyable to eat, rather than a chore. Four seasonal varieties will be on display at the POPUP store. (Design registered.)
Curry

An original curry series where the main ingredient's flavor makes a lasting impression. These are distinctive, craveable curries that are difficult to replicate at home. Two varieties will be available at the POPUP store.
Sweemo (Style Sweets)

A snack series in single-serving sizes, featuring a wide range of options including chocolate, gummies, candy, and semi-soft confections. The flagship store carries approximately 150 items, all in original packaging designed for portability and solo snacking scenarios. Nine items will be available at the POPUP store.
POPUP Store Details
- Period: Thursday, May 28 – Wednesday, June 3, 2026 (7 days)
- Venue: Shibuya Tokyu Food Show — Weekly POPUP Space [ThisWeek3]
- Address: 1-12-1 Dogenzaka, Shibuya-ku, Tokyo (Shibuya Mark City B1F)
- Hours: 10:00 AM – 9:00 PM