
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.
https://www.youtube.com/watch?v=YtVU6yEtdJg
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
https://www.youtube.com/watch?v=B2P_m8VR_9Q&index=3&list=PL81AfRIZJqpRz9AEZvTm4XyVbhnOpu_gk&t=0s
▼ Nagoya
https://www.youtube.com/watch?v=_oHAFeOQKVg&index=2&list=PL81AfRIZJqpRz9AEZvTm4XyVbhnOpu_gk&t=0s
▼ Tohoku
https://www.youtube.com/watch?v=8Wgt3Bbwwfo&index=1&list=PL81AfRIZJqpRz9AEZvTm4XyVbhnOpu_gk&t=0s
▼ Hakata
https://www.youtube.com/watch?v=vhDJjz55QYA&index=4&list=PL81AfRIZJqpRz9AEZvTm4XyVbhnOpu_gk&t=0s
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】
Private booths are coming to Japan’s Shinkansen bullet trains even sooner than we’d thought【Video】
The Purple Lucky Bag from Village Vanguard is an extra-large waste of money
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Dragon Quest Burgers and Slime drinks are coming to McDonald’s Japan【Video】
Harajuku’s new permanent Tamagotchi shop is filled with cuteness and a surprising lack of poop
Majority of Japanese mayors say foreign residents are essential but most see good and bad effects
Nephew receives SD card after his uncle passes away, finds treasure trove of gems from the past
New Japanese menstrual product seeks to help women spot unidentified iron deficiencies
Brand-new Pokémon park opens in Japan with larger-than-life-size Lapras【Photos】
Our top 3 cafes in Azabudai Hills, Tokyo’s newest and possibly swankiest shopping complex
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
We found possibly the quietest Japanese-style hotel in Tokyo’s bustling Shinjuku district
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
That time Seiji called JASRAC to ask why he didn’t get paid royalties for his song being on TV
Japan’s oldest largetooth sawfish in captivity back on display in Mie Prefecture
Pizza Hut Japan’s hot lucky bags are perfect for a New Year’s pizza party
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Stamina-destroying “Paralysis Noodles” are Tokyo’s newest over-the-top ramen innovation
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
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】
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
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Leave a Reply