Group recommends pouring some into your own tub to make it feel like you’re taking a bath together with the idols.
One of the key differences between idol singer groups and more mainstream J-pop acts is how much of idols’ revenue comes from non-music sources. Sure, idols sell albums and concert tickets just like other musicians, but a huge chunk of their earnings comes from assorted merchandise like posters, photographs, and pins.
But four-member idol unit The Banana Monkeys is looking to go beyond such tried-and-true merch by selling its idols’ leftover bathwater.
https://twitter.com/info_banamon/status/1090572246228250624Late last month, the group posted a video of two of its members, Tenka no Chanyuki and Asuka Rei, hanging out in a tub, soaking in water colored a vibrant purple from the bath powder that had been added. However, the Banana Monkeys official Twitter account claims the bath powder was particularly expensive, and so they’re hoping to recover the cost by selling the leftover bathwater, which they scooped out of the tub afterwards and bottled.
▼ Clips from the video
https://twitter.com/info_banamon/status/1090254990772293632 https://twitter.com/info_banamon/status/1090572826208161793“It’s water that idols soaked in, so it’s definitely clean,” boasts the announcement, taking the opposite approach from the Japanese takeout chain that previously offered idol sweat-flavored fried chicken. “You can drink it,” the announcement goes on to say, though we’re not sure how safe that would be, before offering the healthier (at least physically) alternative of “or add a little to your own tub and feel like you’re taking a bath together with the idols.”
▼ Although the fact that both Tenka no Chanyuki and Asuka Rei were fully clothed arguably would make it more like doing laundry with them.
【購入はコチラ】
— THE BANANA MONKEYS (@info_banamon) January 30, 2019
『アイドルの風呂の残り湯 (¥100,000)』 フリマアプリ「メルカリ」で販売中♪ https://t.co/nKy5ngdaaq
Following the announcement, the group’s account proudly tweeted that the leftover idol bathwater was now on sale through secondhand online marketplace Mercari, priced at 100,000 yen (US$900) for a bottle, a price that we’re not sure is exorbitant or not, considering there’s no competing brand of used idol bathwater to compare it to.
▼ The Banana Monkeys’ “Ima wo Ikiro” (“Live for Now”)
However, while that tweet contained a link to the product’s page on Mercari, the listing has since been deleted. It’s unclear if the group, after further consideration, decided not to sell the bathwater, or if it perhaps sold all of the liquid it had available. If it’s the latter, no one has come forward claiming to be one of the buyers, though perhaps that’s because being the owner of a bottle of used idol bathwater isn’t the sort of thing most people would want to tell the world about.
Source: Twitter/@info_banamon via Jin

Idol singer girl sweat flavor fried chicken goes on sale in Tokyo
Japanese idol singer has an important request for fans: Please use deodorant
Japanese idol event stockpiles free deodorant for fans to use before shaking singers’ hands
Mr. Sato takes a walk on Tokyo’s American-style street to get some American/Japanese ice cream
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
The Japan Burger Championship 2026 in Yokohama next month is the ultimate battle of the beef
Same name tops lists of most popular dog and cat names in Japan, and there’s probably a reason why
Tokyo’s insane Garlic Ramen is a meal, and an aroma, you’ll never forget[Taste test]
Two new Sailor Moon art manhole covers are coming to Usagi’s real-world Tokyo neighborhood
Krispy Kreme releases new limited-edition fox doughnuts at only four stores in Japan
Gundam teams up with 300-year-old daruma maker for wood-carved anime mecha figures[Photos]
Own a piece of anime history with U-Treasure’s Astro Boy gold miniature figure
Tokyo restaurant offers lunches for less than 1 U.S. cent…if you’re good enough at rock-paper-scissors
Tokyo’s new extra-expensive ramen restaurant is dividing opinions, so we tried a bowl
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Japan has a new cute and clever sunblock for cat lovers
Japanese temple burns to the ground, fire burning inside for 1,200 years unharmed
Japan’s instant ramen snack theme park features an athletic course even adults can enjoy
Krispy Kreme Japan is bringing two special donuts to the most-forgotten big city in the country
Pizza Hut Japan’s drinkable curry pizza is here – Is it all we dreamed it would be?[Taste test]
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
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’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Studio Ghibli releases new anime keychains that are like miniature figurines
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】
No more using real katana for tourism activities, Japan’s National Police Agency says
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]
“Please don’t use our tubs for getting drunk” pleads Japanese maker of plastic wash tubs
Japanese idol singers selling personal phone calls to fans who want to skip the singing
Japanese idol group bans all gifts from fans to teen singers to help protect their values
Over 1,000 idol singers to gather in Tokyo for massive fan event at Budokan
Japanese idol group asks fans to be respectful towards pre-teen singer for heartwarming reason
Japanese idol singer responds to fan who gushes over how much he loves her thighs
Japanese idol reveals disgusting secret about stuffed animals she’s received from fans
Whack-an-otaku event held by idol singer unit in Tokyo【Video】
Idols from the sea! Massive haul of idol singer photos wash up on Japanese coast【Photos】
Japanese tourism board forms regional idol singer group…with Akita dog heads?!? 【Video】
Japanese idol singer holds memorial concert for 55-year-old fan who died alone and had no funeral
As punishment for boyfriend pics, idol singer to post good night photos of herself alone for one year
Sega leaves arcade management like retiring idol singer, confuses, upsets Japanese Internet users