
All’s fair in love and Manhole Holy War.
The Japanese capital of Tokyo was recently shaken by a sizable earthquake, and while everyone thankfully escaped with their lives it did cause considerable disruption to services and utilities. In the hours following the quake, there were numerous reports of water overflowing from manholes and flooding streets all over the affected area.
▼ One report about the overflowing manholes
It was later determined that the cause of this was burst water mains that had become weak due to age. So, in a way, the earthquake provided an important wake-up call to the officials and residents of Tokyo that their infrastructure was in urgent need of repair.
In response, the Whole Earth Foundation – an organization that comes up with ways to provide public services with limited manpower and budget – declared an emergency citywide Manhole Holy War (Manhole Seisen). This is a gamified volunteer event in which anyone with a smartphone can participate and win big money by helping map out all the manholes in the 23 wards of Tokyo. The first such event was a huge success, in which 700 people mapped out all 10,000 manholes in Shibuya Ward in a matter of only three days.
In the world of Manhole Holy War, all of the manholes have been corrupted by an evil force and the Guardians of Iron and Concrete (i.e. you) must help purify them by taking pictures. Players can participate individually or in teams and prizes range from 5,000 yen (US$44) to 100,000 yen ($877) in gift certificates.
▼ Forsooth, a Guardian of Iron and Concrete approaches her prey most gallantly
Participation is not limited to Tokyo, however. People from all over Japan can help and win money too by checking the photos submitted by Guardians. Altogether, one million yen ($8,776) in gift certificates will be awarded.
To join the Manhole Holy War, players must first follow the official Guardians of Iron and Concrete account on the messaging app LINE. From there they can gain access to the official game app and start taking pictures of manholes in their area.
▼ The game app’s interface
Taking pictures of manholes is about as easy as it gets, but the organizers want to remind everyone not to venture out into the middle of roads or obstruct others going about their daily lives in the pursuit of urban renewal. Aside from that, this manholy war is a great way to get some exercise, contribute to safer infrastructure, and maybe make a few bucks in the process.
However, the war has been raging since 23 October and will end on 31 October, so hurry up and get snapping!
Source: Third Manhole Holy War: 23 Wards of Tokyo Competition Festival, PR Times
Images: PR Times
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!




Studio Ghibli adds new Jiji’s baby plush toy to its anime merchandise range in Japan
Beautiful off-the-beaten-path spot near samurai castle in rural Japan looks like a Monet painting
Tokyo sweets store has a “350% Pudding Soft Serve”, and people are going wild for it
Japanese figure skating star Yuzuru Hanyu and Winne-the-Pooh announce crossover merch line [Pics]
Wagyu ramen for foreign tourists appears in Kabukicho, with a very high price tag
Studio Ghibli adds new Jiji’s baby plush toy to its anime merchandise range in Japan
Beautiful off-the-beaten-path spot near samurai castle in rural Japan looks like a Monet painting
Tokyo sweets store has a “350% Pudding Soft Serve”, and people are going wild for it
Japanese figure skating star Yuzuru Hanyu and Winne-the-Pooh announce crossover merch line [Pics]
Wagyu ramen for foreign tourists appears in Kabukicho, with a very high price tag
Shinto shrine in downtown Tokyo announces cosplay ban
This awesome Japanese arcade chain has crane game coaches to help you win prizes
Studio Ghibli releases new Kiki’s Delivery Service Jiji music box for anime fans
McDonald’s Japan’s new Chiikawa Happy Meal figures are here![Photos]
Stray cats almost became classified as an invasive species in Japan but the change was overturned
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Anime fan in Japan arrested for ordering and cancelling over 4.3 billion yen in anime merch
Starbucks Japan teams up with Traveler’s Company for new stationery and goods collection
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Beautiful Totoro bonsai figure needs no watering, makes soothing rain showers whenever you want
Japan’s new beer glass is designed to force you to drink…water [Video]
End of a manga era as Weekly Shonen Jump’s circulation drops under one million
Kochia calling: Right now is a great off-season season to visit this beautiful Japanese park
This beautiful rural Japan river is a great alternative to touristy summer retreats [Photos]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japan now has human refrigerators inspired by Japanese vending machines
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
New Shinkansen luggage drop-off system begins in Japan, making train travel even easier
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
Japanese Shinkansen becomes an overnight hotel for three nights this summer
Cup Noodle unveils first-ever cold-water instant ramen in Japan
99-year-old woman rescued while attempting to climb Mt. Fuji
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
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]
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
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Shinto shrine in downtown Tokyo announces cosplay ban
This awesome Japanese arcade chain has crane game coaches to help you win prizes
Studio Ghibli releases new Kiki’s Delivery Service Jiji music box for anime fans
McDonald’s Japan’s new Chiikawa Happy Meal figures are here![Photos]
Stray cats almost became classified as an invasive species in Japan but the change was overturned
Japan’s new beer glass is designed to force you to drink…water [Video]
Did you know? Only one Beard Papa’s in all of eastern Japan sells soft serve in a cream puff
This Japanese chopping board sanitising bag might be the handy kitchen gadget we never knew we needed
Are Japan’s room-temperature curry packets the boxed lunch heroes we’ve been looking for? [Taste test]
7-Eleven Japan adds new doughnut-like tonkotsu ramen fried chicken to its hot food section
Over 1,400 cities in Japan see foreign population rise, total populations drop in new statistics
Studio Ghibli theme park announces new expansion saluting a previously off-limits anime
Japanese convenience store food gets turned into hyper-realistic stationery you can peel open
Kumamoto earthquake may have created Japan’s newest hot spring inside flooded restaurant [Video]