
We pay a midnight visit to this central Tokyo hill where rumor holds a ghost sobs in the dead of night.
There are plenty of ways to spend a cold night during a Japanese winter. You could head to a ramen restaurant for a fortifying bowl of piping-hot noodles, or hit up a bar with friends and knock back several cups of hot sake. Or you could simply stay home, camped out in your kotatsu where you’re safe from the chill of the outside world.
but if you’re RocketNews24’s Japanese-language correspondent Ryo, the only way to spend your nights is by walking the dark backstreets of Tokyo as you investigate the purportedly haunted places of Japan’s capital.
In his ongoing quest to experience the supernatural, Ryo’s latest stop is Toyama Park in Shinjuku Ward. The park isn’t too terribly far from RocketNews24 headquarters, but in the interest of maximizing the chance of meeting with entities from the world beyond, we insisted that Ryo perform his inspection in he middle of the night, and so he arrived at the Nishi Waseda subway station shortly after midnight.
Toyama Park is divided into two sections, one of which is right next to the station. On this day, though, Ryo was headed to the other part of the park, which is about a 10-minute walk from the subway stop. Along the way, he had time to reflect on why we’d asked him to visit this particular site.
See, back before the end of World War II, in the days of the Imperial Japanese army, there had been several military medical facilities in the area. Rumor has it that not all of them were for treating wounded soldiers, either. One facility is said to have been used by the army’s infamous Unit 731, a biological weapons development division which was also involved in human experimentation.
It’s said that the skeletal remains of more than 100 people have been found in Toyama Park. What’s more, it’s said that in the middle of the night, if you climb to the top of Hakoneyama, a 44.6-meter (146.3-foot) hill in the park’s eastern section, you can hear a disembodied male voice violently sobbing.
Things got even creepier when Ryo happened upon a local resident and asked him if he was headed in the right direction to get to Toyama Park. The man told Ryo that he was. He also told our reporter that he himself, while walking in the park on another night, had seen a hitodama, a will-o’-the-wisp-like phantasm formed when a soul leaves a human body.
Eventually, Ryo spotted a sign marking the entrance to the park. While there were lampposts every few meters, the park remained largely shrouded in shadows, and there wasn’t another person to be seen.
Ryo noticed a paved walking path, and began ambling along it towards the park’s interior. In the light of the afternoon, the inviting walkway probably would be rather pleasant, but isolated in the night as he was, Ryo couldn’t shake the feeling that it was leading him to something sinister.
Eventually, Ryo’s eyes were drawn to a set of stairs heading towards higher ground. He’d arrived at the base of Hakoneyama.
▼ The Hakoneyama base marker
No sooner did Ryo place his foot upon the first step did the wind die down. As he climbed higher and higher, the only sound he could hear was the rustling of the dry fallen leaves as he stepped on them…unless what he was hearing was actually unseen creatures rustling in the bushes that edged the stairs.
Halfway up the hill, a bench was waiting for Ryo. Had the sun been shining, this would have made a lovely spot to stop and catch his breath, but in the situation he found himself in, he was worried that if he sat down, he might be set upon by ravenous monsters, so he pressed on.
As he progressed upward, he thought he could feel eyes on him, and the muscles of his back began to quiver involuntarily.
Finally, Ryo reached the summit, his breath ragged from the combined effects of physical exertion and panic-induced fear.
In the far distance shone the lights of the city. None of their luminescence reached to where stood, however. Cloaked in darkness, Ryo called out.
“Wandering spirit! If you would make yourself known to me, let me hear your voice! I shall bear witness to your lament!”
And yet, Ryo heard nothing in reply.
Maybe there is no ghost that haunts Toyama Park. Or perhaps he was taking the night off, or is simply a shy specter. Still, Hakoneyama remains an extremely creepy place to visit by yourself at night, so if you’re looking for a place to test your courage, or simply to be totally alone (bar the occasional ghost-hunting reporter), Toyama Park will do just fine.
Photos ©RocketNews24
[ Read in Japanese ]














We investigate Tokyo’s “haunted” phone booth in Mizumoto Park【Haunted Tokyo】
A late-night visit to Japan’s execution site Cursed Pine Tree【Hunted Tokyo】
We investigate Sendagaya Tunnel and get a message from beyond【Haunted Tokyo】
Nike x One Piece collection brings Devil Fruits to sneakers and streetwear in Japan
Nephew of Studio Ghibli director Hayao Miyazaki serves up Totoro Shaved Ice in Tokyo
Winnie the Pooh cosplays as Yuzuru Hanyu for new plushie collaboration
Nagoya’s famous Shinkansen platform noodle shop has other, better branches nearby
Japan’s double-decker portable rice cooker/bento maker is better than ever with new version
Osaka Starbucks has one of the city’s coolest photo vantage points, but it’s going away soon
We recommend not buying one pack of Japan’s new convenience store corn soup-flavor fried chicken
Narita Airport Transit & Stay Program returns after six years with free tours and festival experiences
Ohaw? Ruibe? Pocche? While traveling in Japan’s north, we try Ainu cuisine for the first time
Data suggests increased bear sightings have led to a decrease in mountain climbers across Japan
7-year-old boy left behind on Mt. Fuji by his own dad
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
Studio Ghibli unveils new interactive stationery dioramas that bring anime movies to life on your desk
Studio Ghibli composer Jo Hisaishi just set three Guinness Records
Anime fans can now wear a Seiko watch inspired by Japan’s One Piece Shinkansen
7-Eleven Japan brings back best-selling flat croissant that became a hit on social media
Foreign hiker on Mt. Fuji loses consciousness and dies, becoming climbing season’s second fatality
Universal Studios Japan partners with manga horror master Junji Ito’s Tomie
Japanese workers reveal their top five mysterious rules they wish would disappear【Survey】
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
Tokyo’s newest viral dessert is like a Japanese parfait inside a bread bun [Taste test]
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japanese vending machine sells freshly squeezed lemon juice with a futuristic light show
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]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
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】