
Lingerie maker seeks to address the annoying problem called “PK.”
Let’s take a moment to add to our collection of useful vocabulary they won’t teach you in Japanese class. If you take the word kuu (“to eat vigorously”), and combine it with komu (“to insert”), after a bit of pronunciation fiddling you’ll get kuikomu, which means “to ride up.” Add in pantsu (“underwear”), and you’ll get the phrase “pantsu kuikomu,” which describes the situation when your underwear is riding up into your butt crack.
The obvious solution is to just grab the encroaching fabric with your fingertips and yank it back out. However, lingerie maker Wacoal (who is always down for some unusual marketing) realizes that this isn’t such an attractive option for demure young ladies, especially those who’re in their delicate teen years and dealing with the social pressures of school life. And so the company has created a video, with accompanying song, offering ways for schoolgirls to surreptitiously fix their pantsu kuikomu, or “PK,” problems.
The video follows a trio of young ladies through the course of a day at school, during which they have to deal with multiple cases of PK, with the lyrics (full translation later in the article) combining their supposed internal monologues with solutions to their crises. For example, walking down the hall with your friends when PK strikes? Distract them by pointing out the window and saying “Hey, is that a UFO?”
Then stoop down and fix your panties while they’re looking for the flying saucer, a genuine possibility considering that Japan’s government has no existing framework for defense from alien invasion.
Other scenarios covered include pretending to search for a key in your pocket after hopping off your bike following a PK-inducing ride to school, covering your backside with your schoolbag as you use your other hand to adjust your undies, and high-stepping in gym class to work out an unwanted wedge of fabric.
It’s a little odd that the singer is a guy, but if you’d prefer this slice-of-life story to be narrated by a woman, there are alternate versions of the standard-Japanese video which use Osaka, Nagoya, Tohoku, and Hakata dialects, all of which feature female vocalists.
▼ Osaka
▼ Nagoya
▼ Tohoku
▼ Hakata
The song’s complete lyrics are:
Even though you’re just walking
Before you know it, PK! Oh no!
At times like this, stay calm
“Hey, is that a UFO?”
Distract everyone, then fix your panties.
Yeah, non-PK!“‘morning! “ you say, hopping off your bike
But just then, PK! Oh no!
“Huh? Where…where’d I put my key?”
Pretend you’re checking your pocket
And quickly fix your panties
Yeah, non-PK!The school stairs sure are scary!
Your hair stands on end, and super PK!
But, if you’re carrying your bag, you can use it as cover to fix your panties
No one will notice! Or so you thought…But the guy you’ve got a crush on sees you!
“My life is over!”
Yeah, non-PK!Sitting on the floor in gym class, then getting up to jump and jump, spin and spin
Seriously PK!
At times like this, high steps and twisting your hips
You’re a PK-fixing technician!
Yeah, non-PK!Standing up at the start of class
Yup, PK!
“I hate this!”
Writing: PK. Erasing: PK. Putting on your backpack: also PK.
At times like these, everyone experiences the mysteries of PK!
“Knock it off!”Yeah, PK is no good!
Even if you don’t do any of these things
You can say good-bye to PK
From now on, I’m wearing non-PK panties!
As alluded to in the final line, Wacoal has just released a new line of PK-resistant panties, called Non! PK.
Retailing for around 1,300 yen (US$12), they’re designed to be comfortable yet stay in place through a variety of motions, preventing them from rising, twisting, or otherwise shifting into a PK position. They’re available for purchase here through Wacoal’s website.
And finally, to avoid any confusion, we’d like to remind our readers that SoraNews24’s Japanese -language reporter P.K. Sanjun experiences PK no more or less frequently than any other person on our staff.
Source: YouTube/ワコール Wacoal via IT Media
Top image: YouTube/ワコール Wacoal
Insert images: YouTube/ワコール Wacoal, Wacoal






Lifehacks for perverts: How to make a pretty bow out of some pretty panties 【Video】
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Don’t judge this Kiki’s Delivery Service book by its cover, because it’s not actually a book!
The quest for Dragon Quest Yoshinoya figure sets: Worth taking for fans, tricky for scalpers[Pics]
Starbucks Japan teams up with Converse Tokyo for a new limited-edition collection in honour of Tanabata
One Piece docking at Round 1 amusement centers in both Japan and the USA
Studio Ghibli releases a musical diorama based on a touching anime scene from My Neighbour Totoro
Japanese overnight sightseeing train returns for summer with ramen stops and ocean views
KFC Japan creates spicy summer fried chicken chips together with Calbee
Udon pudding is about to shake up the noodle scene in Japan
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Live-action Spirited Away stage play announces world tour with first-ever U.S. and Canadian dates
Tokyo has only two barley tea makers, and we visited one to see how mugicha is made
Blind Tokyo commuter explains the easiest place for him to stand while riding the train
Sleep at Hoshinoya Nara Prison, one of the most unique hotels in Japan
Pikachu brings electric style to brand-new Pokémon G-Shock watch featuring every stater trio
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
Forget Tokyo go-karts – there’s a new way to sightsee on four wheels in Japan
Japanese sweets brand creates new drinkable Cigare and we’re totally here for it
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]
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]