Queues on Rainy Days and Typhoons: The "Mysterious Butcher Shop" COWSI Yamiichi Appears Only on Saturdays in Minoshima, Fukuoka

Queues even in the rain.

Queues even during typhoons.

A butcher shop appears only on Saturdays in Fukuoka City's Minoshima Shopping Street. The landmark is a standing sign ( #ZOM02 ) that glows purple, reading "Nutritious and Strong Meat." They prepare and sell rare cuts and offal from Japanese Black cattle purchased whole, as well as brand-name meats like Iki beef and Nagasaki Prefecture lamb, all marinated in their original sauce and offered at bargain prices—people line up before opening, rain or shine.

Even during a recent typhoon approach, they operated with safety precautions. Still, the line of umbrellas never broke, and the number of regular customers continues to grow. "It's suspicious, but definitely delicious," and "You can't buy it anytime"—this rarity is driving word-of-mouth, drawing attention as an experiential meat sales event.

A Suspiciously Glowing Sign

"It's Usually Expensive. Only on Saturdays, It's Cheap."

COWSI Yamiichi is a guerrilla meat sale held only on Saturdays, operated by Add value Inc. (COWSI GROUP / Representative: Yasuma Fukutomi), which manages seven restaurant businesses and meat processing/wholesale in Fukuoka City. The話題 (topic of conversation) is spreading, primarily on social media (@cowsi_yami), due to its astonishing price setting—less than half the usual price—and the rarity of not knowing what will be available.

Some even bring their own pots...

3 Features of COWSI Yamiichi

1 Bargain Prices for Rare Cuts & Brand-Name Meats, Possible Due to Whole-Cattle Purchases

COWSI GROUP handles everything from free-range fattening at their own ranch (Kuju, Oita Prefecture) to processing and aging at their own meat factory (Kiyokawa, Fukuoka City). In addition to rare cuts and offal from Japanese Black cattle purchased whole, they also feature brand-name meats such as Iki beef and Nagasaki Prefecture lamb. (Examples: Beef Sliced Thin 100g ¥350 / Marinated Diced Steak 100g ¥450 / Homemade Hamburg Steak ¥380 / Iki Beef for Grilling 100g ¥750 / Nagasaki Prefecture Lamb 100g ¥650, etc.)

2 Original Sauce, 72-Hour Marination for Serious Flavor

Their specialty is offal marinated for 72 hours in their original sauce, rich with garlic. The contrast of "cheap yet authentic" creates repeat customers and word-of-mouth. Their homemade sauce (¥980) is also popular as a standalone item.

3 Saturdays Only, Starts at 11:00 AM, While Supplies Last

Operations are limited to Saturdays, starting at 11:00 AM and ending when sold out. The location is Minoshima Shopping Street. They provide real-time updates on inventory and sell-out status on SNS in limited quantities.

Interview Request

This event is rich with elements that are visually appealing for video and photography, from the pre-opening queues and the purple glowing sign to the sizzling sounds of grilling on the teppan and the moment of sell-out. On-site interviews and filming are possible every Saturday from 11:00 AM (until sold out), along with interviews with the shop owner and coverage of the processing and aging process at the meat factory (Kiyokawa, Fukuoka City).

Event Outline

Name: COWSI Yamiichi

Location: Fukuoka City, Minoshima Shopping Street

Hours: Every Saturday 11:00 AM~ (ends when sold out)

Products: Teppan-grilled offal / Beef sliced thin / Diced steak / Homemade hamburg steak / Iki beef / Nagasaki Prefecture lamb / Homemade sauce, etc.

SNS: instagram・Threads @cowsi_yami

Online: https://cowsimeat.myshopify.com/pages/yamiichi

Company Overview

Company Name: Add value Inc. (COWSI GROUP)

Representative: Yasuma Fukutomi

Address: 2-6-2 Kiyokawa, Chuo-ku, Fukuoka City

Established: April 28, 2015

Business Activities: Restaurant industry (7 businesses) / Meat processing and wholesale

HP: https://www.cowsi-group.com

Inquiries Regarding This Matter

Add value Inc. Public Relations Representative TEL: 092-981-1256 / MAIL: cowsi0724@gmail.com