
Super Happy! Challenge gives us two unforgettable products that deserve a place in convenience store history.
If you’re hungry and in the mood to try convenience store food, Lawson is the place to go right now as the chain is currently upsizing some of its most popular products for free.
▼ Popular items in the “Super Happy! Challenge” lineup include oversized versions of onigiri, sandwiches, and the Premium Roll Cake.
In amongst the offerings are two surprises we weren’t expecting, and rather than being happy to see them, we had a hunch they might be too extreme for anyone’s liking.
▼ The “Too Sour” Salted Lemonade (228 yen [US$1.43]) and the “Too Sweet” Drinkable Chilled Zenzai (298 yen).
According to Lawson’s official website, the Too Sour version of the chain’s Salted Lemonade contains twice as much lemon juice as the previous version, while the Too Sweet version of the Drinkable Chilled Zenzai is made with twice as much red bean paste as the original product.
▼ Zenzai is is a traditional Japanese sweet made from sweetened red beans and usually served with mochi (rice cakes).
Reading the descriptions alone, it’s hard to tell just how extreme these drinks really are, so our reporter P.K. Sanjun bought both the regular and upsized versions of each for a taste test back in the office.
▼ Starting with the regular Salted Lemonade, it wasn’t especially sour – in fact, it tasted more like a lightly salted lemonade than anything intensely citrusy.
Then he took a sip of the Too Sour Salted Lemonade…
▼ Waaaaa!
P.K. could hardly get his words out, but when he finally unpuckered his lips he managed to say, “Wow. This stuff is unbelievable.“
It wasn’t just that it was more sour – the entire flavor profile felt completely different. To try and describe it, P.K. says it’s like tasting the difference between water and tea and then tasting the difference between water and cola, which is where the Too Sour Lemonade sits. The taste, texture and intensity is on a whole other scale compared to the regular version.
▼ It was so intense he couldn’t even finish the drink, so he moved on to the regular Drinkable Chilled Zenzai.
It had a pleasantly balanced sweetness that was fairly refined and P.K. had absolutely no complaints about the flavour. Then he took a sip of the Too Sweet Drinkable Chilled Zenzai…
▼ Tooooooo sweeeeeet!!!!!!!!
The sweetness was absolutely relentless. It was the kind of sweetness that burns its way down your throat in an aggressive manner and it was so strong that P.K. dare not take another sip.
After trying the drinks, P.K. was surprised to find that in both cases, he actually preferred the original versions. They felt more balanced and, frankly, more enjoyable to drink.
▼ P.K. gives both of these two thumbs down.
Although the drinks themselves were too extreme for P.K.’s palate, he was impressed by Lawson’s marketing. In choosing to go overboard with the sourness and sweetness levels, this campaign serves to highlight just how good the original versions are. It also proves that you really can have too much of a good thing, and so sometimes, just sometimes, upsizing your favourite products or flavours may not be all it’s cracked up to be.
Everyone’s palate is different, though, so if you’d like to test yours against the extreme ends of the spectrum, the drinks will be on shelves for a limited four-week period from 2 June.
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 ]









Which Japanese convenience store sells the best pizza bun?【Taste test】
Lawson convenience store at popular tourist site is one of the most unusual in Japan
Weirdest convenience store drink in Japan? New drinkable Happy Turn makes stomachs turn
Drinkable Mayo on sale at Japanese convenience stores for mayonnaise fanatics
Japanese convenience store chain now sells Sakura Lattes!
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
Japanese convenience store shows us how to dress for the rainy season
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
Tokyo’s Pokémon Cafe reopens this month with brand-new sweets and Pikachu show
Lawson opens a new mini supermarket, and the lucky bags can essentially stock your kitchen
Tourists brave Typhoon Jangmi to queue at two famous sites in Tokyo
Japan’s sticker wars are reaching a breaking point, even for enthusiasts
Studio Ghibli adds new range of neckties to its anime merchandise store in Japan
Starbucks Japan unveils new Frappuccino showcasing “mottainai” culture
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
What’s up with the Ghibli Park photo and video ban?
Japan’s adorable pudding chick becomes a transit card mascot
Osaka is hosting a “hentai” event, but it’s probably not what you think
Starbucks Japan has a problem with its sell-out breakfast that might annoy solo diners
Pikachu cakes and other adorable Pokémon 30th anniversary food coming to Tokyo luxury hotel
Krispy Kreme releases a new Doughwich… at only one store in Japan
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Kanji ice cream becomes a sell-out hit in Japan
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Japan has a new cute and clever sunblock for cat lovers
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Lawson convenience stores now sell see-through pudding in Japan 【Taste test】
The Japanese convenience store where you can drink beer on tap
New Japanese convenience store sandwiches feel like they’re out to kill us
Convenience store onigiri rice balls become even more expensive…but are they worth it?
Lawson adds doughnuts to its convenience store sweets range, but are they good enough to go viral?
Which Japanese convenience store has the best premium pork buns?
Japan Super Budget Dining – What’s the best way to spend 1,000 yen at Lawson?
New convenience store chain to rival 7-Eleven opens in Japan
We taste makunouchi bento at four Japanese convenience store chains【Taste comparison】
Which Japanese convenience store has the best onsen tamago hot spring eggs?
Lawson convenience stores sell a mega katsu sando, and there’s a hack to get it cheap in Japan
Japanese ramen chain elevates convenience store food with new microwaveable noodles【Taste test】
What’s in a Lawson fukubukuro lucky bag?
Soon you can drink your ice cream at Lawson convenience stores throughout Japan
Japanese convenience store packs a whole bento into an onigiri rice ball