
Exciting range includes a new take on the rice burger, and it’s only available at one convenience store chain.
Big-name convenience store chains like 7-Eleven, Lawson and Family Mart tend to dominate the market in Japan, but did you know there’s a convenience store run by East Japan Railway Company?
Called NewDays, where “every day is a new day that begins at the station”, these convenience stores aim to serve both the people of Japan and railway commuters, and right now they’re grabbing everyone’s attention with a new range of epic rice balls.
There are a total of seven rice balls in the new lineup, which has been named “Sugo Oni”, with “sugo” being the shortened form of “sugoi“, which means “great” or “wonderful“, and “Oni“, meaning demon. The rice balls are so-called because they’re said to be so big they’re half demon, half rice ball, and they even come with a new mascot character to promote them.
▼ Sugo Oni kun is half onigiri, half demon, and says “Oni Sugoi” a lot to express his surprise at everything, seeing as he’s just been born.
Customers who see the new Sugo Oni collection might very well let out a gasp of “Oni Sugoi” too, as the range aims to “change the common sense of convenience store rice balls” by delivering epic flavours and portion sizes fit to fill the hungry belly of a demon.
Kicking off the range are four types of onigiri, which became available from 1 June, with the remaining three scheduled to be released one at a time over the next three weeks. We stopped by to pick up the four debut onigiri as soon as they went on sale, and found the baby demon looking adorably surprised on all of them.
First up to the tasting plate, we have two onigiri packaged up in triangular packs and both priced at 300 yen (US$2.72) each: The W Ebi Ten (Double Prawn Tempura) and the Nama Ham (Dry-cured Ham).
The prawn tempura onigiri is seasoned with sauce and mayonnaise, and has two plump pieces of tempura prawn strapped into it with a strip of seaweed.
This seasoned rice is a great accompaniment to the fried prawns, and the fact that there were two pieces of prawn here upped its weight considerably, making it more like a bite-sized bento than a rice ball.
Next up, we have the Dry-cured Ham, which in this case was prosciutto. This fusion onigiri, priced at 300 yen, perfectly combines Japanese flavours with Western flavours, with the vinegared rice cutting through both the saltiness of the ham and the richness of the cheese to lighten the generous meal and leave you with a refreshing aftertaste.
Now we come to an actual bento-in-a-rice-ball, the Noriben Nigirimashita (300 yen), which translates to “noribento pressed into shape“. Noribento, or noriben as it’s commonly called, is a popular boxed meal containing rice topped with smoked bonito flakes and soy sauce and covered with a sheet of nori (roasted seaweed) as the main component, along with side dishes like chikuwa (fried fish cake) and fried white fish.
This Noriben rice ball allows you to eat the famous bento with one hand, as they’ve moulded a total of seven ingredients — chikuwa, fried white fish, tartar sauce, fried chicken, omelette, kinpira gobo (simmered burdock root), and bonito — into a nori-covered mound of rice for a meal that’s incredibly tasty and incredibly filling at the same time.
Finally, we have the rice ball we most want to recommend to our readers: The Teriyaki Rice Burger. At 350 yen, this is slightly more expensive than the other rice balls in the series, but it’s totally worth it as it’s the dream rice burger we’ve been waiting years for.
While fast food chains like Mos Burger and McDonald’s are famous for their “rice burgers” in Japan, the rice used in place of buns is always hard and densely packed together in order to sandwich the filling between them. It’s just not the same as munching into a fluffy serving of rice, which is what we’ve always wanted in our rice burgers, and soft rice is exactly what this rice ball delivers!
The shape of the rice buns here is excellent, and the teriyaki chicken stays firmly sandwiched between them. The plump rice, soft chicken, and soy and mayonnaise seasonings make this one incredibly tasty, and it’s also the perfect size to fill your stomach.
▼ When you’re hungry and pressed for time, this is your ideal option.
The only downside to this new series is the fact that it’s only available at NewDays stores in Nagano Prefecture and the Tokyo metropolitan area. Some products are also sold at NewDays Kiosk branches in these regions, with details available on the official site.
The half-demon half-onigiri series really does challenge “the common sense of convenience store rice balls”, as they’re considerably more exciting than the options you can find at the big three chains at the moment. And with Onigiri Day coming up on 18 June, there’s no better time to try the series, which by then will include a bacon-and-egg rice ball and a triple-scallop version too!
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]










We Put A Bowl of Tonkotsu Ramen into a Rice Ball: Japan’s new demonic combini temptation
Attack on Titan rice ball is as titanic as the Japanese anime
Takoyaki Party and Italian fully-loaded rice balls coming to NewDays for a limited time
Japanese convenience store packs a whole bento into an onigiri rice ball
Japan Railways recently revealed ramen-style rice balls in its convenience stores
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks unveils a range of secret Christmas cakes in Japan
Why you shouldn’t call this food “Hiroshimayaki” if you’re talking to people from Hiroshima
Ultra-premium matcha, koji rice mold star in Starbucks Japanese New Year’s Frappuccino and drinks
Starbucks on a Shinkansen bullet train platform: 6 tips for using the automated store in Japan
KFC Japan earned 6 billion yen over Christmas weekend, proving that Japan loves Christmas chicken
Is the all-you-can-eat KFC buffet in Tokyo really as good as they say it is?
New Evangelion short anime, written by Hideaki Anno, to have world premiere early next year
Is the new Shinkansen Train Desk ticket worth it?
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Starbucks Japan releases new zodiac chilled cup drink for 2026
Street Fighter Hadouken Churros to be launched and eaten in Tokyo, Okami pudding on offer too
Is this the most relaxing Starbucks in Japan?
Large amount of supposed human organs left in Osaka marketplace
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japanese train company is letting fans buy its actual ticket gates for their homes
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Is China’s don’t-go-to-Japan warning affecting tourist crowds in Tokyo’s Asakusa neighborhood?
Nintendo’s Kirby now delivering orders at Kura Sushi restaurants, but not in Japan
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
The top 10 annoying foreign tourist behaviors on trains, as chosen by Japanese people【Survey】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
7-Eleven under fire in Japan for mysterious holes in their onigiri rice balls
The best-selling rice ball at Family Mart is…SPAM onigiri?
The difference between onigiri rice balls in Tokyo and Osaka
Japanese convenience store releases a new bento sandwich, but is it better than a bento rice ball?
In celebration of Onigiri Day, we compare rice balls from three different convenience stores
Onigiri Bread from Japanese convenience store chain changes everything we know about rice balls
Tapioca onigiri brings boba to the world of rice balls
Say hello to the Big Bomb Onigiri, a beast of a Japanese rice ball
Space Onigiri: Do these long-lasting Japanese rice balls taste any good on planet Earth?
Great balls of octopus and rice! It’s the Takoyaki Onigiri
What do Japanese People Put in Their Rice Balls? Top 22 Most Popular Onigiri Fillings!
Should you warm up your convenience store onigiri rice balls in the microwave?【Taste test】
7-Eleven Japan to double the shelf life of their onigiri rice balls
Okinawa soul food: We try the most epic pork and egg onigiri rice balls in Japan
The surprising semi-secret ingredient in many Japanese convenience store rice balls: oil
The Big Bomb Onigiri Japanese rice ball helps us conquer mountain race but conquers us in the end
Leave a Reply