Daily Yamazaki, a major Japanese convenience store chain (known locally as a konbini), has launched its “Double Double Challenge!!” (Baibai Challenge) campaign starting February 17, 2026. This nationwide campaign doubles the filling of their popular Onigiri (rice balls, a Japanese soul food). Prices remain the same as usual, and with enhanced point rewards, it offers incredible value for money.
The three main highlights of this campaign are:
- The amount of filling inside the onigiri is doubled.
- The amount of rice is increased by up to 1.8 times.
- The reward rate for Rakuten Points (a widely used point system in Japan) is effectively doubled or more.
This campaign is available for a limited time until Monday, March 9, with the featured onigiri changing every week.
[Wave 1] Dashi Onigiri Salmon & Okaka: Savory Umami and Double the Filling
From Tuesday, February 17 to Monday, February 23, the first featured item is the “Dashi Onigiri Salmon & Okaka.”
- Sale Period: Feb 17, 0:00 – Feb 23, 23:59
- Price: 183 yen including tax (approx. $1.22)
- Available at: Daily Yamazaki, Daily Store, and New Daily Store locations across Japan
- Increase Details: 2x filling, 1.4x rice volume
This product features rice mixed with “Dashi” (a savory broth extracted from seafood and other ingredients) and is packed with plenty of salmon and “Okaka” (dried bonito flakes). With twice the filling, you can enjoy the rich seafood flavor in every bite. The 1.4x increase in rice makes it a satisfying volume for breakfast or lunch.
[Wave 2] Japanese-Style Tuna Mayonnaise Onigiri: Overwhelming Weight and Satisfaction
Starting Tuesday, February 24, one of the most popular flavors in Japanese konbini, Tuna Mayonnaise, gets a massive upgrade.
- Sale Period: Feb 24, 0:00 – Mar 2, 23:59
- Price: 224 yen including tax (approx. $1.49)
- Increase Details: 2x filling, 1.4x rice volume
“Japanese-Style Tuna Mayonnaise” combines soy sauce-based rice with smooth tuna mayonnaise. By doubling the filling, the texture of the tuna and the richness of the mayonnaise are further highlighted. With the rice also increased by 1.4 times, the weight of this onigiri far exceeds the standard for typical convenience store rice balls.
[Wave 3] Sanriku Wakame Seaweed Onigiri: The Highest Rice Increase Rate
The campaign concludes with a healthy option featuring treasures from the sea, available starting Tuesday, March 3.
- Sale Period: Mar 3, 0:00 – Mar 9, 23:59
- Price: 166 yen including tax (approx. $1.11)
- Increase Details: 2x wakame, 1.8x rice volume
This onigiri uses a generous amount of “Wakame” (a type of seaweed) from Sanriku, one of Japan’s leading production areas. Not only is the seaweed doubled, but the amount of rice is increased to 1.8 times the usual size—the highest increase rate in this campaign. It is a highly satisfying rice ball that allows you to fully enjoy the aroma of the ocean and the crunchy texture of the seaweed.
Rakuten Points Reward Rate Also “Doubled”
This campaign is attractive not only for the volume of the products but also because the point rewards are effectively doubled.
For every qualifying onigiri purchased, “3 bonus points” will be awarded in addition to the regular points. This results in a reward rate that is effectively more than twice the base rate.
- Point Grant Timing: Expected two business days after the transaction
- Eligible Cards: Rakuten Point Card or Rakuten Point Card App
- Note: Some stores may be excluded.
Visit Daily Yamazaki When Traveling to Japan
The “Double Double Challenge!!” campaign is a perfect opportunity to fill up at the same great price. Since the featured products change over time, we recommend checking the schedule in advance.
Please experience this surprising volume and service that symbolizes Japanese konbini culture. We look forward to seeing you at Daily Yamazaki, Daily Store, and New Daily Store locations across Japan.
Double Double Challenge!! | Recommendations & Campaign Info | Daily Yamazaki 🇯🇵
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