
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 ]



Japan now has human refrigerators inspired by Japanese vending machines
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Starbucks Japan releases new fireworks collection that captures the beauty of a summer festival
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
Tokyo’s viral 90-yen cafe pop-up returns to Harajuku with yogurt coffee
Japan now has human refrigerators inspired by Japanese vending machines
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Starbucks Japan releases new fireworks collection that captures the beauty of a summer festival
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
Tokyo’s viral 90-yen cafe pop-up returns to Harajuku with yogurt coffee
Starbucks Japan releases new Discovery Series collection celebrating local regions and traditions
Family Mart’s new Tokyo flagship convenience store doesn’t feel convenient, but is that a problem?
Japan’s favorite quasi-local curry launches convenience store version – Does it match the real deal?
Japan’s ultracompact kei car taxis are now ready for travelers to ride, if you know where to find them
We found the world’s first Yakult 1000 soft serve, and it’s hidden away in Nara
Cup Noodle unveils first-ever cold-water instant ramen in Japan
Japanese government ID card and app to be required for certain Pokémon card purchases next month
Teen girl in Japan refuses to be victim, personally escorts train pervert to police for arrest
Is Japan’s tourism boom slowing down? Foreign visitor numbers fall for first time in five years
Evangelion beautifully reimagined as iconic classical Japanese folding screen art series [Photos]
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
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
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
Starbucks Japan releases new Discovery Series collection celebrating local regions and traditions
Family Mart’s new Tokyo flagship convenience store doesn’t feel convenient, but is that a problem?
Japan’s favorite quasi-local curry launches convenience store version – Does it match the real deal?
Japan’s ultracompact kei car taxis are now ready for travelers to ride, if you know where to find them
We found the world’s first Yakult 1000 soft serve, and it’s hidden away in Nara
7-Eleven Japan introduces extra large size coffees at stores… but how big are they?
Starbucks Japan releases exclusive new Bearista collection…with beary cute details
Teen girl in Japan refuses to be victim, personally escorts train pervert to police for arrest
Evangelion beautifully reimagined as iconic classical Japanese folding screen art series [Photos]
“Stab-kill for two deaths” and other fun Japanese baseball terms
Defacing the Japanese flag is now a crime, says government, punishable by up to two years in jail
Is Japan’s tourism boom slowing down? Foreign visitor numbers fall for first time in five years
Cup Noodle unveils first-ever cold-water instant ramen in Japan
Studio Ghibli brings anime characters to the table with new Totoro placemat that’s like a movie cell