
When a handful of Japan’s wannabe starlets made a plea to their limited fan base to send them as many plastic bottle caps as possible, it was generally assumed that nothing much would come of it. However, imagine our surprise when, keen to see their favorite idols hit the big time, passionate fans stepped up to donate over 100 million caps towards their case.
In Japan, fans with this level of dedication are known as “aidoru otaku”, meaning idol or star fanatics. Their enthusiasm often goes beyond the boundaries of casual fandom and enters into what can only be described as the realms of what some might deem obsessive. Even so, you’ve got to admire their team spirit- that’s an awful lot of drinks to consume!
Around 100 million bottle caps in just two weeks!
Small-time idols looking for a chance to up their status were given a chance by their registered agent to collect as many eco-friendly caps as possible in return for a leg-up to stardom. The initiative was all part of a major debut selection process named “Eco Cap Collection Program”. In short, the idol who collected the largest amount of caps, in return for their efforts, was given a the chance to debut under the guidance of Japanese company Hyadain. In total, around 100 million caps were collected, which weighed in at a whopping 2.3 tons!
Unsigned stars looking for a big break
The contest was open to anyone registered with the Alice Project talent agency, regardless of age or experience. For many potential stars existing on the lower strata and finding it hard to make ends meet, such a chance is a once in a lifetime opportunity.
Talent office flooded with caps
During the initial drafting stages of the eco-cap collection program, no one foresaw just how well it would go. In actual fact, as soon as the contest went live, the talent office was inundated with so many caps each day that it became almost impossible to get any work done. As a temporary measure, a nearby theater which the talent office owns was used as a “cap storage room”.
Polio vaccine for 1,150 people
But why bottle caps? Collecting 860 caps generates enough revenue for one polio vaccine. This time around, the total amount of caps collected was 98 million nine thousand (based on a 1 kilogram = 430 pieces calculation). In other words, the amount of possible vaccines that would be produced as a result of this most recent venture totalled in at 1,150.
Even two trucks couldn’t carry all the caps in one go!
The caps were collected by a special contractor. However, when it came to gathering them up on the day, even the two dispatched trucks weren’t enough to carry the 2.3 tons of weight. Subsequently, the whole recovery process took considerably longer than originally estimated. Lesson learned: never underestimate the sheer power and dedication of Japan’s aidoru otaku!
[ Read in Japanese ]



Man arrested for violating Japan’s anti-dueling law in downtown Tokyo
Giant hotel rooms in Osaka reflect the new non-niche face of travel in Japan.
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Japanese women showing rebounding interest in giving Valentine’s Day chocolate【Survey】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
Man arrested for violating Japan’s anti-dueling law in downtown Tokyo
Giant hotel rooms in Osaka reflect the new non-niche face of travel in Japan.
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Japanese women showing rebounding interest in giving Valentine’s Day chocolate【Survey】
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
See-through Japanese maid’s uniform gives you the power of X-Ray vision
Japanese avoiding domestic travel as foreign tourists increase, possibly creating vicious cycle
Fried sandwiches arrive in Tokyo, become hot topic on social media
Japanese department store rooftop is a secret oasis where you can escape the crowds in Tokyo
The Purple Lucky Bag from Village Vanguard is an extra-large waste of money
10 times to avoid traveling in Japan in 2026
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Top Japanese cosplayer Enako returns to Comiket after 6 years, creates mayhem with admirers
Umamusume anime girl plushie recalled for having parts she absolutely should not have【Pics】
We ate sushi made from Japan’s most expensive tuna ever【Taste test】
Princess Mononoke magnets return just in time to treat yourself to awesome anime decorations
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
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’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Starbucks Japan releases new zodiac chilled cup drink for 2026
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
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
Human washing machine pods coming to Japanese hotels【Photos】
See-through Japanese maid’s uniform gives you the power of X-Ray vision
Japanese avoiding domestic travel as foreign tourists increase, possibly creating vicious cycle
Fried sandwiches arrive in Tokyo, become hot topic on social media
Japanese department store rooftop is a secret oasis where you can escape the crowds in Tokyo
The Purple Lucky Bag from Village Vanguard is an extra-large waste of money
When is it OK to take a naked hot spring bath with your Japanese girlfriend/boyfriend?
Survey finds more than half of Japanese women’s nieces don’t call them “aunt”
Which Japanese conveyor belt sushi chain has the best egg sushi?【Taste test】
Cosplayers brave the cold in skimpy outfits at Winter Comiket in Japan
Udon Doughnuts boom in popularity, get a whole new look at Japanese restaurant chain
Tom Cruise arrives in Japan, talks with horse girls【Video】
Rakuten randomly offers 58 New Year’s osechi feasts in Japan, but did we get a star or a dud?
Awesome website allows you to make your own Dragon Ball character, battle other fighters
Leave a Reply