
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!




Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Studio Ghibli releases new anime keychains that are like miniature figurines
Dorayaki from 89-year-old Japanese confectionery shop is one of the best sweets hidden in Tokyo
Japan’s Mister Donut Japan tries its hand at Taiwanese-style street food donuts
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Studio Ghibli releases new anime keychains that are like miniature figurines
Dorayaki from 89-year-old Japanese confectionery shop is one of the best sweets hidden in Tokyo
Japan’s Mister Donut Japan tries its hand at Taiwanese-style street food donuts
Police in Japan summoned to deal with bank intruder…who is also a deer[Video]
Tifa’s Final Fantasy VII bar is going to pop up in real-world Tokyo
War in Iran threatening Japan’s pudding production
Tokyo store makes you to pass a quiz in order to buy Pokémon cards as part of anti-scalper policy
Live-action Ghibli Princess Mononoke stage play tickets are now on sale
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Brand-new Square Enix Cafe to open in Tokyo…and in Los Angeles too!
Japanese convenience store gives away free ice cream with creative ad at Shinjuku Station
Hello Kitty is now a transforming truck robot[Photos]
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Wisteria season starts early with blooming of Japan’s Great Wisteria in its beautiful garden
Japan’s best conveyor belt sushi restaurant of seven years ago has now, finally, come to Tokyo
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Injuries on stairs in Tokyo highlight an overlooked design flaw
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
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
Police in Japan summoned to deal with bank intruder…who is also a deer[Video]
Tifa’s Final Fantasy VII bar is going to pop up in real-world Tokyo
War in Iran threatening Japan’s pudding production
Tokyo store makes you to pass a quiz in order to buy Pokémon cards as part of anti-scalper policy
Live-action Ghibli Princess Mononoke stage play tickets are now on sale
Japanese people share 11 amusing tales relating to pregnancy and childbirth
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Retro-style Evangelion T-shirts coming to Uniqlo sister brand GU[Photos]
Only five branches of Japan’s beef bowl giant Matsuya serve milk shakes, but how do they taste?
Second-generation sumo burger coming to Burger King Japan with return of Baby Body Burger
New Legend of Zelda Boss is a canned coffee, gives you a chance at awesome jacket loot【Pics】
What are the worst things about living in the Japanese countryside?[Survey]
Brand-new Square Enix Cafe to open in Tokyo…and in Los Angeles too!
McDonald’s and Gundam team up for customized anime mecha and fried chicken sandwiches[Video]