Matsuya Official X Posts Number-Guessing Quiz on Underground Locations, with Nighttime Photo of a Basement Store

On June 18, 2026 at 19:19, Matsuya’s official X account (@matsuya_foods) posted a nighttime exterior photo of a basement-level store, along with a store-guessing post reading, “Underground Matsuya… How many locations do you all know?! By the way, this store can be entered via elevator.” It’s a lightweight engagement post asking followers how many “underground Matsuya” locations exist nationwide.

The Post

At Matsuya now!! (╹◡╹) Underground Matsuya… How many locations do you all know?! By the way, this store can be entered via elevator.

Item	Details
Post time	June 18, 2026 (Thursday), 19:19
Channel	Matsuya Official X (@matsuya_foods)
Format	Standalone post (no quote retweet)
Attached image	1 (nighttime store exterior)
Content	“At Matsuya now” report + “underground Matsuya” number-guessing quiz + elevator entry hint

Exterior Photo in the Attached Image

The attached image shows the store’s nighttime exterior: a modern, triangular building entrance lined with the “Tonkatsu,” “Matsunoya,” and “Matsuya” logos. There is an internally lit LED signage pillar, a red rope-barrier post, and blue-lit panels visible through the glass interior. A Macky decoration sits in the lower left, giving the layout a light, playful touch.

Nationwide Distribution of “Underground Matsuya” Locations

As of today, five stores nationwide have addresses containing “B1F,” “basement level,” or “underground” in Matsuya’s official store list.

Store	Store Code	Prefecture	Address
Matsuya Nishi-Shinjuku	0216	Shinjuku-ku, Tokyo	Nishi-Shinjuku Hashiyada Building 1F/B1F, 5-10-14 Nishi-Shinjuku
Matsuya Kanayama	0210	Naka-ku, Nagoya, Aichi	Carney Place Nagoya Kanayama B1F
Matsuya Shibuya Miyamasuzaka	2250	Shibuya-ku, Tokyo	B1F, 1-8-3 Shibuya
Matsuya Shinjuku Sumitomo Building	2286	Shinjuku-ku, Tokyo	Shinjuku Sumitomo Building B1F, 2-6-1 Nishi-Shinjuku
Matsuya PREMIUM Ginza	2330	Chuo-ku, Tokyo	Bento & Deli Section, B1F Matsuya Ginza

The distribution comes to five stores in total: four in Tokyo (Shinjuku, Shibuya, Ginza) and one in Nagoya, Aichi Prefecture.

The Official Hint: “Enter via Elevator”

Matsuya’s official hint is the line “this store can be entered via elevator.” Among the five stores, Matsuya Shinjuku Sumitomo Building (2286, Shinjuku Sumitomo Building B1F, 2-6-1 Nishi-Shinjuku) — a basement store inside a skyscraper — fits the condition most readily as a candidate offering direct elevator access to the underground floor. The post does not specify which store it actually is, leaving room for followers to guess.

A Continuing Pattern of Store-Guessing Quiz Posts

The previous day, June 17, at 20:25, Matsuya’s official X account quote-retweeted a store photo post captioned “I’ve arrived in Japan” from @hamano_jun (Jun Hamano [Matsuya]), asking a store-guessing question: “Hmm, I wonder where this store is? (´∀｀)” This time, rather than a quote retweet, it’s a standalone post with a store exterior photo the official account shot itself, and the quiz format shifted from “guess the specific store” to “test your knowledge of the distribution count” — but it continues the lineage of lightweight engagement posts that turn stores into quiz material, appearing on consecutive days.

A Light Post Amid 60th Anniversary Campaign Activity

This post landed as a light 19:00-hour engagement post amid a run of operational announcements: five concentrated initiatives plus an app glitch on June 16 (Matsuya’s 60th Founding Anniversary), an app recovery notice in the afternoon and a Shkmeruli tasting report at night on June 17, and an ORCALAND thank-you quote retweet plus a reply quote retweet to sumo wrestler Tochinoshin on the morning of June 18.