
A beautifully arranged, blissfully huge order of one of Japan’s favorite summertime foods.
For generations, Japanese folk wisdom has held that eating unagi (eel) is supposed to help prevent heat exhaustion. So with this summer bringing record-breaking temperatures to Japan, we figured the only medically responsible thing to do was to eat 10,000 yen’s (US$90) worth.
Thankfully, Kappa Sushi, the same sushi chain that provided us with our 10,000-yen otoro (extra-fatty tuna) sushi cake, is once again happy to oblige our ambitious gluttony. In addition to its all-you-can-eat deal, Kappa Sushi is also offering a 10,000-yen Unagi Sushi Cake, or, as it’s also called, the Shigoku no Ooke Series Natsu Unaju (“Extreme Tub Summer Series Unagi on Rice”).
As with many monstrously large entrees, the Unagi Sushi Cake requires prior notice, with three days necessary for Kappa Sushi’s chefs to put it together. Once ours was ready, we headed to our nearest Kappa Sushi branch to pick it up, then brought the hefty round container back to SoraNews24 headquarters.
The premium-priced Unagi Sushi Cake comes swaddled in a furoshiki wrapping cloth bearing the Kappa Sushi logo. We untied the bundle and opened the lid of the tub-like container, then feasted our eyes on the sushi feast inside, eliciting gasps of excitement from everyone in the office at the thick slices of carefully arranged unagi.
Unagi is already an expensive sushi ingredient, but Kappa Sushi has paired it with another decadent element by heaping a generous portion of ikura (salmon roe) at the center of the spiral of unagi slices.
▼ Speaking of locations, the unagi is sourced from Kagoshima, on Japan’s southeastern island of Kyushi, while the ikura is from Hokkaido, the northernmost of the country’s main islands.
As another classy touch, the Unagi Sushi Cake comes with a wooden shamoji (rice scoop), which we used to dish ourselves up a serving.
We weren’t sure how unagi and ikura were going to taste together, since they’re usually eaten separately when served as block-like nigiri sushi. There turned out to be no reason to worry, though, as the sweetness of the unagi and the saltiness of the ikura blended into a luxurious harmony. Meanwhile, the vinegared sushi rice acts as a refreshing palate cleanser.
Everything tasted so good that we didn’t want to stop eating, and with so much food, we didn’t really have to. Still, we managed to slow our chopsticks enough to taste the condiments that come with the Unagi Sushi Cake.
First, we tried adding sweet sauce and sansho (a slightly bitter, pepper-like spice). While these are the standard flavorings for unagi, they sort of overpowered the ikura. Wasabi and soy sauce, sometimes used as unagi accompaniments in the Nagoya area, worked a little better, but still masked much of the ikura’s inherent deliciousness. So really, we recommend eating the Unagi Sushi Cake just as it comes, allowing the unagi and ikura to both reach their full potential for your taste buds.
At 10,000 yen, the Unagi Sushi Cake is a high-ticket item for the ordinarily inexpensive Kappa Sushi. Then again, since the chain says it’s big enough to feed eight people, it’s not a prohibitively pricy extravagance, at least on a per-person basis.
The Unagi Sushi Cake is available for take-out only, and can be ordered online here. It’s on sale until August 1, at which point you’ll have to settle for other ways to blow 10,000 yen on a single boxed meal.
Photos ©SoraNews24
[ Read in Japanese ]







Here’s what a 10,000-yen Sushi Cake from Japan looks like
Sushi Cake is returning to Japan for the holidays
This restaurant’s US$0.45 sushi is an amazing way to expand your sushi horizons in Tokyo
What’s for dinner? A US$113/3.3-pound sushi bowl from one of Japan’s favorite cheap restaurants
Which Japanese conveyor belt sushi chain has the best saltwater eel sushi?【Taste test】
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Hikaru Utada sings new song in Shinkansen commercial for Japan’s Supreme Class cabins
Tokyo’s Haneda Airport opens new Terminal 1 North Satellite next month
Foreign travelers arrested in Japan following smash-and-grab robbery in Tokyo shopping mall
Pizza Hut Japan creates moon-viewing sukiyaki chrysanthemum pizza for tsukimi season
Starting this fall, you’ll be able to take a Pokémon Jet flight to Japan
Anime and Hollywood movies cross over in new Universal Studios Japan merch collection
Nonstop flights from U.S. to Okinawa return after 54 years, making travel faster than before
Japan tripled its departure tax to fund tourism but is using the money on cherry blossoms and bears
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Nike x One Piece collection brings Devil Fruits to sneakers and streetwear in Japan
We recommend not buying one pack of Japan’s new convenience store corn soup-flavor fried chicken
Police in Japan looking for who’s responsible for dumping 80 loaves of bread on side of road [Video]
7-year-old boy left behind on Mt. Fuji by his own dad
Anime fans can now wear a Seiko watch inspired by Japan’s One Piece Shinkansen
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
Tokyo’s newest viral dessert is like a Japanese parfait inside a bread bun [Taste test]
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Tokyo has a BLUE sushi restaurant with all-you-can-eat BLUE sushi for just 400 yen (US$3.50)
Which Japanese conveyor belt sushi chain has the best ikura sushi?【Taste test】
Is Japan’s highest-ranking unagi restaurant worth the six-month wait for a table? We find out
Sushi Push Pops aiming to be Japan’s newest sakura season snack sensation
This is what a 10,800-yen (US$100) Tokyo sushi boxed lunch looks like【Taste test】
Butter on sushi? We’d heard it was great, but we wouldn’t believe it without trying it ourselves
This is what a 10,000-yen (US$92) Tokyo bento boxed lunch looks like【Taste test】
This ISN’T what a US$100 Tokyo sushi lunch looks like. It’s what a US$200 one looks like!
Can one man blow 10,000 yen at Tokyo’s cheapest Italian restaurant? The human otter finds out
We investigate which conveyor belt sushi restaurant is best for drinking alone, drowning regrets
How huge of an egg sandwich can you get at Subway with 10,000 yen? We found out
Japan super budget dining – What’s the best way to spend 1,000 yen at sushi restaurant Sushiro?
Which Japanese conveyor belt sushi chain has the best salmon sushi?【Taste test】
All-you-can-eat sushi, ramen, and desserts return to Japanese restaurant chain for under 15 bucks
Tokyo’s craziest pasta: Our custom-made spaghetti with all the toppings we can get for 10,000 yen