
Unrequited love? This scientist may have found a solution!
The red string of fate, or 運命の赤い糸 (unmei no akai ito), is basically the East Asian version of “soulmates.” The details, of course, can vary greatly by country, but in Japan, the idea is that couples are connected by an unseen red thread, usually depicted as being tied around the pair’s pinkies. It’s an old concept and is even part of the Kojiki, one of Japan’s oldest extent texts.
But this traditional myth has received a modern update thanks to mathematician-turned-artist and MIT professor Sputniko!, one of our favorite Japanese musicians. Melding traditional Japanese religious symbols with contemporary music (and science), her new song “Red Silk of Fate – Tamaki’s Crush” tells the story of a young scientist who modifies a silkworm to produce silk that will make her crush fall in love with her.
The video for the song, which features lyrics and vocals by Sputniko! and music by Japanese producer Ram Rider, appeared online today and is quickly racking up the views. It also features a central performance by Runa Natsui as the love-lorn scientist who retreats to a Shinto shrine to conduct experiments and Sputniko! as Sachihiko John Yamada, the hottest geneticist in the lab.
▼ Basically, this is going to be the best music video you watch today.
But it turns out this isn’t entirely a work of fiction — in fact, the process described in the song is based on actual work done by scientists at Japan’s NIAS, the National Institute of Agrobiological Sciences. As in the video, the scientists created a silkworm that produces silk that contains oxytocin, described by Sputniko! as “a social-bonding ‘love’ hormone,” and “the genes of a red-glowing coral.”
▼ Here’s a photo of the real-life “Red Silk of Fate”
We have a feeling the silk won’t quite work like in the video — you’ll still have your work cut out for you if you’re trying to catch the eye of that hot lead scientist — but you’ll be happy to know this isn’t a one-off deal. When we contacted the artist, Sputniko! let us know that there are plans to produce more of the silkworms, possibly to sew the silk into omamori (protective amulets sold at Shinto shrines and some Buddhist temples). If you’re interested in getting an omamori for yourself, the artist told us they will be available at Teshima 8 Million Lab, which was conceived of by Sputniko! and is the first shrine devoted to worshipping a genetically modified animal, the silkworm’s that produce the Red Silk of Fate.
Sputniko! also suggested they might even consider using the silk in underwear, which could have been a joke, but we would buy them as fast as we can whip out our wallets!
Until we can actually purchase love-inspiring, glow-in-the-dark silk boxers, though, we’ll just sit here replaying the amazing video over and over.
Sources: YouTube/Sput niko, Twitter/@5putniko, Sputniko!
Images: YouTube/Sput niko, Sputniko!



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
Beautiful Totoro bonsai figure needs no watering, makes soothing rain showers whenever you want
End of a manga era as Weekly Shonen Jump’s circulation drops under one million
Anime fan in Japan arrested for ordering and cancelling over 4.3 billion yen in anime merch
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
Beautiful Totoro bonsai figure needs no watering, makes soothing rain showers whenever you want
End of a manga era as Weekly Shonen Jump’s circulation drops under one million
Anime fan in Japan arrested for ordering and cancelling over 4.3 billion yen in anime merch
Japan’s new beer glass is designed to force you to drink…water [Video]
This Japanese chopping board sanitising bag might be the handy kitchen gadget we never knew we needed
7-Eleven Japan rethinks convenience store drinks with new Grilled Corn Chilled Soup Smoothie
Tired of city life? Try out Japanese rural life for a few days on an active volcano in Kagoshima
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese vending machine sells freshly squeezed lemon juice with a futuristic light show
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
7-Eleven Japan adds new chocolate fruit gummies to its sweets range, but are they worth the hype?
Starbucks Japan teams up with Traveler’s Company for new stationery and goods collection
Tokyo’s newest viral dessert is like a Japanese parfait inside a bread bun [Taste test]
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
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Japanese Shinkansen becomes an overnight hotel for three nights this summer
Cup Noodle unveils first-ever cold-water instant ramen in Japan
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
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】
Japan’s new beer glass is designed to force you to drink…water [Video]
This Japanese chopping board sanitising bag might be the handy kitchen gadget we never knew we needed
7-Eleven Japan rethinks convenience store drinks with new Grilled Corn Chilled Soup Smoothie
Tired of city life? Try out Japanese rural life for a few days on an active volcano in Kagoshima
Starbucks Japan teams up with Traveler’s Company for new stationery and goods collection
Japanese convenience store Lawson now has stir-fried noodle-cooking robot chefs
Bandai looking to introduce Japanese government ID checks for admission to card game events
Kochia calling: Right now is a great off-season season to visit this beautiful Japanese park
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Over 400 titles of free translated manga from publisher Shueisha available for a limited time
Japan’s new difficult-to-drink-from beer glass protects your liver, but it’s a brutal experience
Pokémon comes to McDonald’s Japan for new Happy Meals toys, brings every generation’s starters
This beautiful rural Japan river is a great alternative to touristy summer retreats [Photos]