
With Japan entering the new month with a higher sales tax, people are beginning to feel the squeeze. In addition, April is the time of year when many people make big changes in their lives such as moving out on their own. This is already an expensive time made even more so by the economic climate.
One such person is Omocoro writer ARuFa. He feels that he has successfully come up with a way to reduce your water bill drastically by taking baths that would only cost 0.0000076 yen (US$0.000000075). This is his story.
AruFa: “Hello, I’m ARuFa. I have a black bar across my eyes, but that’s not why I’m talking to you today. I’ve recently moved into an apartment by myself. Like anyone who moves out of their parents’ home I tremble due to loneliness at night and pull out nose hairs to stave off the stinging pain of homesickness.”
ARuFa: “Aside from these typical problems, I’ve found something even more terrifying about living on your own. This!”
ARuFa: “’It’s just a faucet’ you might be thinking, but actually it’s a silent thief in the night who seduces you with its cool pleasures and steamy encounters only to have pilfered your savings by the end of the month. The faucet is a foul temptress who has left many a soul penniless with overwhelming utility costs.”
AruFa noticed that the more water that came out of the taps the more his bill would come to. He deduced that not making so much water come out could help this situation, but how? He decided to start here, at the bath tub where most of the water comes out.
Through painstaking experimentation he found that while putting a plastic bottle into the bath water, its level would rise. He later found that this was called “displacement” and that someone named Archimedes had beaten him to the principle by about 2,000 years. ARuFa was a little bummed about that, but remained optimistic.
He reasoned that if one plastic bottle would make the water level rise a little bit, then putting more bottles would make it rise further. Therefore the more bottles he used the less water would come out of the faucet.
He immediately went online and ordered some plastic bottles.
A few days later a package arrived.
It took up a lot of floor space and cost about 7,500 yen (US$74) with shipping. Both of the facts kind of irritated ARuFa, but he quickly forgot about all that. He was on the verge of something great and he could feel it.
He opened the box to reveal several plastic gaping mouths pointing upwards as if singing to the heavens about ARuFa’s genius. He could almost hear the angelic choir ring back “ARuuuFaaaa’s goooonnnaa save a buuuutttloooaad of moOOooney…”
“Yes I am,” he thought to himself, but first it was time to work. He would have to fill all of these bottles up with water and then line the bathtub with them for the ultimate in water conservation.
Bottle after bottle he filled and lined.
Filled and lined…
The repetitive toil was beginning to take its toll on ARuFa who could feel an ulcer developing.
Four hours later, he was finished.
ARuFa: “I shouldn’t have taken that nap for three hours and forty minutes.”
The bottles were complete. However, you can’t call it a legitimate bath without any hot water. ARuFa placed a single drop of piping hot H2O from the tap.
In his area, water from the faucet costs 0.0002 yen (US$0.000002) per cubic centimeter. AruFa calculated one drop of his syringe to be 0.038cc, so 0.0002 times 0.038…
ARuFa: “In other words, if I begin to use all of these bottles to take my bath the water cost will be reduced to 0.0000076 yen ($0.000000075). It’s so awesome I think I’m going to puke!”
Now it was time to test this new bath out. ARuFa stepped into the tub. Surprisingly his body floated on top.
His body slowly settled into the plastic bath amid the crinkling sounds of tokkktoookkokok. However, it began to conform to his back like an old tractor tire might. He suspected that this would improve his circulation and stiff shoulder.
As an added bonus he imagined a plastic bottle bath could revolutionize the bath house industry. The way it is now, with people sunk into their tubs, everyone is isolated. But if everyone sat atop their baths the experience could be come much more sociable.
Having completed his first bath, ARuFa’s complexion was two shades paler and he couldn’t lift his left arm over his head anymore, but he felt refreshed.
Then inspiration struck.
ARuFa: “I could make an open-air bath with this!”
And so he packed up most of the water filled bottles into the box and carried it with his one remaining good arm to the nearest park.
He thought the serene atmosphere of this park would be perfect for his new bath.
ARuFa: “It’s perfect. Perfect and beautiful. Monkeys will come. It’s so authentic monkeys will come to this. Ah ah aaaaaaahhhhhh.”
He wasted no time climbing inside his new open-air bath. With the late winter sun shining overhead and the pleasant ambiance of children playing it was like paradise. He could instantly feel the pain in his right arm from carrying three dozen 2L bottles of water fade away. Indeed, both of his arms felt completely numb.
In the distance he could hear a young boy shout “Hey, it’s a bath!” Immediately after he could hear an adult say “Never look at that man. Promise your papa now.” That saddened ARuFa a little but he was in too much bliss to care much.
Even the bottles of water that were gradually cooling in the late winter wind couldn’t chill his indomitable spirit. He could do this a million times and still only have to pay 7 yen ($0.07). There was nothing left for ARuFA to do but look at the camera a laugh.
ARuFA: “Screw you water company! HAHAHAHAHAHA!”
Actually there were a few more things he wanted to do.
Yes, it looks like ARuFa has changed Japanese bathing culture for the better and saved millions of people millions of yen in the process. Surely, generations to come will build statues in this man’s honor.
ARuFa: “I’m king of the world!”
Source: Omocoro (Japanese)








































Tottori airport serves crab soup from a faucet and… Dammit Seiji, put down that plastic bottle!
How to crush a plastic bottle without touching it
Seiji starts a new health regimen with Oronamin C, straight from a plastic bottle faucet
Internet reacts with confusion to Muji’s new fill-it-up-yourself water bottle product
Tokyo Police shows a clever way to conserve water in a disaster and impress children with magic
Tokyo’s life-size Gundam is getting a new look before its end-of-summer removal
Universal Studios Japan is giving Frieren anime fans the chance to make unforgettable memories.
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
When is miso ramen not miso ramen? When it’s the new ramen at one of Japan’s top beef bowl chains
Japan now has “edible cat fur” for people who really love felines
7-Eleven’s new green tea rice ball and sweets are only available in Japan’s top tea-growing area
Sanrio Hotel Floria isn’t actually a hotel, but it’s still a must visit for fans traveling in Tokyo
300-tonne hose washes up on Japanese shore
7-Eleven Japan has a new Creamy Iced Cafe Latte that’s a hit on social media
Japanese university welcomes birth of baby deer on campus, president waives entrance exam[Videos]
East Japan Railway announces plans to abolish magnetic-strip tickets
New Square Enix Cafe reveals Final Fantasy, Dragon Quest, Nier, and Fullmetal Alchemist menu items
Japan’s cheap beef bowl chain goes upscale with Matsuya Premium, but is it worth the higher price?
Family Mart commits “reverse fraud” in new Giant All-Star Festival, and we couldn’t be happier
New Tokyo sweets shop offers 648 different mochi ice cream dumpling combinations
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Shakey’s Japan creates matcha mochi, Kyoto fish, and Kansai Chili Con Carne pizzas
Anne Hathaway creates PR frenzy in Japan after mentioning Tottori in Devil Wears Prada interview
Kanji ice cream becomes a sell-out hit in Japan
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Japanese convenience store shows us how to dress for the rainy season
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
Can a simple plastic bottle cure you of armpit sweat?
Possibly the most useless product in the world: The Plastic Bottle Bottom Cap
Coca-Cola Japan are testing “fill your own bottles” water dispensers to help reduce plastic waste
Kyoto man arrested for throwing large plastic bottles full of batteries into canal
Seiji shares a very special tip to keep warm and have fun in the Japanese New Year
How to have a Japanese rotenburo bath experience without leaving your home【Photos】
Lifesaving makeshift water faucet also great for making the legendary “juice faucet”【Video】
No electricity? No problem! Empty plastic bottles are helping to cool homes in impoverished areas
Tokyo police’s lifesaving makeshift water faucet also great as a home beer dispenser
Is 800 Million Yen Really Enough to Take a Bath In?
We buy a sushi-restaurant-themed bath bomb that threatens to smell like the ocean
Stuffy nose ruining your day? This handy Japanese lifehack will clear your sinuses instantly
DIY hydrogen bath kits all the rage in Japan, our reporter unleashes the bubbles for himself
Sink or drink? Japan celebrates arrival of this year’s Beaujolais Nouveau with special wine-bath
Japanese onsen stand is part gas station, part hot spring vending machine