
Kind of like a Japanese version of Pennywise the Clown.
Japanese rail companies pride themselves on making customer safety a priority, and if that means creating a monster to keep children from falling into the gap between the platform and the train, then so be it.
The idea is the brainchild of West Japan Railway Company (JR West), who teamed up with Osaka City University and the Osaka Municipal College of Design (OMCD) to create the “Kodomo Sukima Tenraku Boushi Project”, which translates to “Child Gap Fall Prevention Project“.
The project came about after JR West found that over the past three years, one in three cases of passengers falling into the gap at stations in the Osaka area involved children under the age of 10. This was a disturbing revelation that required serious action, so the team behind the project decided to create a campaign with a “scary but eye-catching and intriguing” theme.
▼ Yep – nailed it.
At the centre of the campaign is a monster called “Sukima Mori”, with “sukima” meaning “gap” and “mori” taken from “yamori”, meaning “gecko”. It’s also a play on the words “sukima mamori” which means “mind the gap”.
▼ If you don’t mind the gap, this giant gap gecko will climb out and get you.
According to the character’s bio, Sukima Mori is 14 metres (46 feet) long, which is “about the size of 10 children”, and it lives in the gap between the platform and the train.
It likes to move at its own pace and sleeps in a ball. And just to make sure children don’t have too many nightmares about the monster at night, Sukima Mori is said to dance when its happy.
A dancing Sukima Mori is better than one reaching out to grab you with its six legs.
Sukima Mori can be seen in a number of different railway scenarios to warn children, and parents, of the dangers of the gap. Want to retrieve that shoe or hat you dropped in the gap?
▼ Better think again.
And what about that smartphone you dropped? Sukima Mori’s certainly not happy about that.
Whenever its gap space is disturbed, Sukima Mori gets angry, as you can see with the cross-shaped angry symbol popping beside its head.
Sukima Mori is now making its presence felt at stations around Osaka, with a series of posters and digital signage warning children, and parents, of the monster’s existence.
▼ “The dangers for children lurking in the gap”
▼ ”Don’t give the gap any chances” is a reminder for parents to be on guard for their children.
There’s also a booklet that parents can read to their children at night, like a sweet bedtime story.
The tale tells the story of a child who ran towards the train without holding his mother’s hand.
▼ Well, that didn’t work out well for him.
So in future, kiddos, proceed carefully when approaching the train doors, and parents — keep your eyes off your smartphone and on your child, to ensure they don’t get eaten by the monster lurking beneath the train.
The new project does a great job of catching the attention of children and parents, so hopefully Sukima Mori will be able to stop more little ones from falling in the gap in future.
Once passengers learn the dangers of the gap from a young age, there’s a good chance it might decrease accidents amongst adults in future too, as it’ll create a whole new generation of young adults who will forever be thinking a monster lives in the gap between train and platform.
Source: Kodomo Sukima Tenraku Boushi Project via Otakomu
Images: Kodomo Sukima Tenraku Boushi Project
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!

















Why do seats at some Japanese station platforms face away from the trains?
Tokyo government organizes food truck event to clear out delinquent/homeless teen gathering area
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
This Japanese vending machine doesn’t sell drinks, but you can buy drinks through it
We go looking for a monkey mommy like Punch with Amazon Japan’s ultra low-rated orangutang plushy
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
When will the cherry blossoms reach full bloom in Japan this year?[Forecast]
TeamLab Planets: Walk up a waterfall and catch koi fish at new digital art museum in Tokyo
Universal Studios’ Sailor Moon theme park attraction is finally coming to America
Psyduck teapot produced by Japanese craftspeople is here to serve up a headache-soothing cuppa
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
The next time you’re feeling stressed out, you could relax on a Pokémon Psyduck chair from Japan
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
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
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
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