The biggest five days in the history of the MOS official online shop
MOS Food Services, Inc. (headquarters: Shinagawa-ku, Tokyo; President: Eisuke Nakamura), operator of MOS BURGER, will hold MOS BURGER Day from Tuesday, September 1 to Saturday, September 5, 2026 as part of TikTok Shop The Brand Day on the short-video platform TikTok. During the five-day event the brand will effectively take over the entire TikTok Shop app. MOS Food Services is only the second food brand selected for The Brand Day, and the company describes the campaign as the most rewarding five days in the history of its official online shop, combining coupons, free sampling and live commerce.
15% off coupon for every item, up to 32% off when stacked
Throughout the campaign, a 15% off coupon valid on every item in the TikTok Shop Official MOS Online Shop will be distributed, one of the largest discounts ever offered by the brand online. Popular items include:
- MOS Rice Burger Tasting Set, 6 varieties: 4,670 yen (tax included)
- Frozen MOS Chicken, 10 pieces: 4,300 yen (tax included)
The coupon can also be combined with the various coupons issued by TikTok Shop, bringing the total discount to a maximum of 32% off. In addition, shipping is free throughout Japan during the period, making it an ideal chance to stock up on frozen items.
Note: prices on the shop reflect shipping and related costs, and all campaign discounts are calculated based on those prices.
Free samples of the new MOS Deli range for the first 4,000 buyers
The first 4,000 customers who make a purchase during the campaign will receive a free product sample. The highlight is MOS Deli, a new brand of frozen foods for home use, featuring two grilled rice ball burgers.
- MOS Deli Yaki-Oni Burger Beef Kalbi: 300 units
- MOS Deli Yaki-Oni Burger Chicken Kinpira: 300 units
- MOS Rice Burger Dry Curry: 3,400 units (online sales started in July 2026)
Note: quantities are limited and offers end once stock runs out. The sample received depends on order timing and cannot be changed.
More than 100 popular creators, including Ayannu and Hige Shokudo, go live
During MOS BURGER Day, more than 100 popular affiliates and creators such as Ayannu and Hige Shokudo will post videos tied to the MOS online shop, creating a platform takeover in which MOS BURGER content dominates the TikTok app. Product reviews and live commerce sessions will showcase the brand across the app.
Official TikTok Shop store already accounts for about 20% of online sales
Opened in April 2026, the TikTok Shop Official MOS Online Shop has grown quickly, accounting for roughly 20% of the company total online shop sales within four months. More than 1,000 product-related videos have been posted so far, and about 80% of sales come from creator product introductions, showing how firmly video-driven purchasing has taken hold.
Campaign details
- Name: TikTok Shop The Brand Day, MOS BURGER Day
- Period: Tuesday, September 1 to Saturday, September 5, 2026
- Store: TikTok Shop Official MOS Online Shop
- Highlights: 15% off coupon on all items; free samples for the first 4,000 buyers; live commerce by 100-plus creators; free shipping nationwide in Japan
This is a rare opportunity to try MOS Rice Burgers, MOS Chicken and the new MOS Deli line at a discount. Since coupon stacking conditions and stock levels can change quickly, checking the shop from day one is recommended.