The new meanings revealed in this image, thirty years after the film’s release, have anime fans reaching for the tissues.
It’s been a sad month for anime fans after internationally acclaimed anime director and Studio Ghibli co-founder Isao Takahata passed away in Tokyo on 5 April, after being hospitalised for heart and health conditions during a long battle with lung cancer.
As tributes poured in for the 82-year-old, Nippon TV paid their respects to the accomplished director by broadcasting one of his most well-known films, Grave of the Fireflies, on national TV on 13 April. Known for its heavy content, depicting the lives of two siblings struggling to survive in the Japanese city of Kobe during World War II, anime fans knew to have the tissues nearby during the televised broadcast, but what they didn’t realise was that there was another heart-wrenching moment on the way for them, waiting to be discovered in one of the promotional posters for the film.
The poster, which has now become a hot topic on chat forums in Japan, appears to show the two main characters of Seita and Setsuko sharing a rare moment of joy while surrounded by a field of fireflies.
This particular poster has been around since the film’s release thirty years ago in 1988, so fans wouldn’t normally think twice about looking into the details of the already-familiar image. One Twitter user, however, has now caused a stir online by unveiling a hard-to-see object in the darkness, which gives the poster a whole new meaning and a poignant sadness that many fans are seeing for the very first time.
火垂るの墓のポスターのホタルが全て蛍じゃないという説をいま読んで、画像を解析してみたら本当だった。
— 𝗞𝗢𝗠|𝗡𝗔𝗠𝗜 コミナミ (@comicloverhouse) April 13, 2018
知らなかったです…#火垂るの墓 pic.twitter.com/ZY9QVVhySb
The lightened image on the right of the tweet clearly shows a warplane in the sky above the children’s heads; a striking detail that’s easy to miss on first glance in the original poster. What’s even more heartbreaking is the implications of the plane on our initial reading of the image, which @comicloverhouse mentions in his accompanying text:
“I just read a theory that the fireflies in the Grave of the Fireflies poster aren’t all insects, so I analysed the image and it’s really true. I never knew about this.”
Given that the movie contains a number of scenes showing Japan being firebombed, it becomes clear that the differently shaped lights glowing in the night sky show not only fireflies but bombs from the air raids as well.
With tens of thousands of likes and retweets for @comicloverhouse‘s tweet, Ghibli fans have been expressing their surprise at the revelation.
“Wow. I’ve seen this picture a hundred times before but never seen these details.”
“So the round lights are fireflies and the longer ones are firebombs? That’s a heartbreaking image.”
“It’s amazing that they could conceal these types of details in a poster.”
“So “fireflies” has a double meaning…”
“Is that why they use the kanji for “fire” and “dangle” to mean “fireflies” in the title?”
It’s true that the movie title in Japanese, “Hotaru no Haka“, is written out as “火垂るの墓“, which uses 火 (hi), the kanji for fire, and 垂 (tareru) which describes something dangling down, like a droplet of water about to fall from a leaf, to make up the word hotaru, which means firefly in Japanese. Ordinaily, hotaru is written out in its own kanji – 蛍 – so the double meaning in the title actually references the incendiary bombs, which appear on the poster.
If you’ve seen the movie, you’ll know how important the firefly motif is, not only to the animated scenes onscreen, but also to the storyline, with the short lives of the insects symbolising the young lives lost during war. While the firefly/firebomb reference is clear to see once it’s been pointed out, its initial subtlety and the understated subtext are great examples of the small details that make Studio Ghibli films stand out in the anime film world.
To uncover some more of the studio’s secret details, don’t forget to check out this video here, which reveals all the Easter eggs hidden inside Ghibli films!
Source: Otakomu
Featured image: Instagram/ryuzi_kobayashi

Studio Ghibli reveals surprising secrets hidden in My Neighbour Totoro
Akiyuki Nosaka, celebrated author of Grave of the Fireflies, passes away
Exhibition honoring Studio Ghibli’s late Isao Takahata is now open in Tokyo’s Azabudai Hills
Your vote will decide which Ghibli film will be shown on the big screen in Japan!
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!
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Sanrio amusement park in Tokyo to host Psycho Game horror event this summer[Video]
Japanese sweets souvenirs don’t get more beautiful than this
Super Sound Yobikumi-kun Mini poised to be the hottest Japanese Christmas gift of the year
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Expensive Japanese nail clippers: Are they worth it?
Shocking blue cream-filled taiyaki cakes now available from Yokohama Kurikoan for a limited time!
Only in Japan: handwritten love letters from high school girls now available in crank machines
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Tifa’s Final Fantasy VII bar is going to pop up in real-world Tokyo
Japanese convenience store gives away free ice cream with creative ad at Shinjuku Station
Japan is so hungry for workers it used up its five-year visa quota in record time
Tsujihan sushi bowl restaurant goes viral with foreign tourists, but is it worth the hype?
7-Eleven Japan releases Uji matcha smoothies… but only at select locations
7-Eleven Japan’s cooked-in-store takoyaki is here! How does it fare against the street food king?
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
Mt. Fuji decorated with a 500,000-flower pink carpet is Japan’s ultimate spring view
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
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Studio Ghibli anime to stream online in Japan for first time ever, but not from any deal with Ghibli
Candy from Ghibli’s Grave of the Fireflies disappearing as manufacturer goes out of business
Studio Ghibli offering reprints of posters from all its anime films made from original plates
Ghibli’s saddest anime gets new T-shirt line【Photos】
Studio Ghibli releases new image albums and soundtracks for fans
Test your Ghibli knowledge: Can you identify the films by these minimalist fan-made posters?
Studio Ghibli co-founder Toshio Suzuki receives lifetime achievement honor at Annie awards
Studio Ghibli re-releasing all past theatrical posters and program booklets
Studio Ghibli finishes free-to-use image release with 250 from Nausicaa, Laputa, and more
Hayao Miyazaki eulogizes Isao Takahata, remembers purposely subjecting him to second-hand smoke
Plan to turn real-world shrine from Studio Ghibli anime into a parking lot upsets fans, residents
Ghibli Art Frame calendar gets expanded availability, will keep fans organized, happy in 2025 and beyond
Tumblr artist designs Legend of Zelda movie posters in Studio Ghibli style