Conclusion — At least as a product experience, the official campaign is deliberately built around a reversal of meaning
Before the film opens, Sirens start appearing all over town.
Interior decorations.
Characters on doors and walls.
Plush toys.
Mascots.
Keychains.
Commemorative medals.
Bottles.
Café menus.
Food collaborations.
To someone who does not know the story yet, the Siren is simply:
“a new, round, cute character from the movie.”
After watching the film, the same character becomes:
“the creature that pickled islanders and ate them.”
The merchandise itself has not changed.
The viewer's knowledge has.
As a result, the meaning of the same plush toy flips.
Up to this point, that can still be explained as a change in the audience's interpretation.
Shiruko Sand goes one step further.
Matsunaga Seika's official product description explicitly separates the experience before and after watching the film.
“Please enjoy it with a drink before and after watching the movie.”
So the product is designed to be encountered twice:
eat it before the movie; eat it after the movie; experience the same product at two different points in the story.
That route is explicit.
The fact that “its meaning changes later” is not merely an accident.
At minimum,
the product experience includes returning to the same snack and tasting it again after the film.
Before the screening, Shiruko Sand is just a snack
Before seeing the film, Shiruko Sand is simply a movie-collaboration snack.
The package shows Chiikawa and friends in grass skirts, the Siren, and a mermaid.
It is a familiar local snack around the Nagoya area.
It connects easily with the film's setting and food imagery.
There is nothing strange about handing it to a child.
“The same snack as the mermaid.”
“A Chiikawa movie snack.”
That is about as far as the meaning goes.
After the screening, Shiruko Sand recalls “that lure”
After watching the main story, the viewer knows the scene in which the mermaid approaches the Shiruko Sand.
The same snack that was eaten before the movie now carries another meaning.
It is no longer merely a local food item that appeared in the story.
It is tied to the sequence used to lure the mermaid out.
That makes a move like this possible:
Give a child Shiruko Sand before the movie.
Watch the film as usual.
After the screening, let the realization land: “Wait... this snack...”
The official campaign does not say, “Please reenact the bait used for a killing.”
It would be wrong to claim that.
But all of the following are present:
- the mermaid and the Siren on the package;
- “that scene” on the reverse side;
- an official invitation to eat the product both before and after seeing the film.
This is not a product description that ignores the change of context produced by the movie.
What does “a spell that gets stronger after the screening” mean?
Before the movie, Shiruko Sand is an ordinary snack.
After the movie, neither its flavor nor its shape changes.
What changes is the way it connects to memory.
The viewer now carries information from the story.
As a result, merely seeing the product can trigger a chain of associations:
- the mermaid;
- Hitoha and Futaba;
- luring the mermaid out;
- mermaid flesh;
- eternal life;
- AA batteries;
- the Siren's pursuit.
In other words, the film reveals a “spell” that gives the product a new meaning.
Before the screening, the object has no cursed energy in it.
After the screening, the same product becomes a medium that summons memories.
A spell that gets stronger after the screening.
And the official campaign explicitly tells people to eat it both before and after the film.
You can compare the spell before activation and after activation for yourself.
The simmered red fish is even worse
Seven-Eleven released ten collaboration items inspired by food that appears in the story.
One of them is:
“Chiikawa the Movie — Seven Premium Simmered Red Fish.”
The official news release describes it as recreating “the simmered red fish that also appears in the movie.”
A line has to be drawn here.
The real-world product is simmered red fish.
It is not literally mermaid flesh from the story.
The official campaign does not say that it recreated mermaid flesh.
But for someone who has already seen the film, the following associations immediately line up:
- a mermaid;
- red flesh;
- simmering;
- a body that changes after eating it;
- hiding the fact that it was eaten.
The product does not have to say any of this directly.
The viewer connects the dots on their own.
That is why a dark little prank like this becomes possible:
Serve the simmered red fish first.
Then take someone to see the movie.
After the screening, let the meaning of the meal flip.
This is not an officially recommended viewing order.
It is the audience being tasteless on purpose.
But the joke arises so naturally because the connection between the merchandise and the story is so strong.
Shiruko Sand starts to look like the “before,” and the red fish like the “after”
Once you know the story, the food collaborations arrange themselves into a sequence in your head.
Shiruko Sand.
Lure the mermaid.
Simmered red fish.
Eat.
Eternal life.
AA batteries.
The Siren's pursuit.
The real-world products are separate, ordinary, safe commercial foods.
Even so, once the story is known, they begin to look like:
a full course meal from luring the victim to cooking it.
This is the point where you want to ask, “Do you people have a heart?”
The official campaign never writes overtly gruesome copy.
It sells everything in cute packaging.
That is why children can buy it too.
But anyone who understands the story understands everything.
The PARCO café turns “pickling” into a menu item
The PARCO movie collaboration café offers a dish called:
“Siren's Very Well Pickled Plate.”
According to the official menu description, it includes a miso-flavored gratin depicting Chiikawa and friends being pickled, Siren-shaped rice, fried horse mackerel, and other items. It also comes with a gold “Very Well Pickled” sticker.
To someone who has not seen the film, it is a cute miso-gratin plate.
After the film, it looks like a menu built around the processing of islanders before they are eaten.
Even the name resembles a child-friendly phrase of praise such as “Very well done.”
A preparation step before predation is converted into the language of a gold-star school sticker.
A frightening meaning is wrapped in cute words.
That is the same technique the film itself uses.
Why there is so much Siren merchandise
TOHO's official shop sells a Siren-only theatrical commemorative medal, stainless-steel bottle, hand towel, a bookmark pairing the Siren with Rakko, and more.
Chiikawa Market offers Siren-and-mermaid luggage tags, water-surface acrylic keychains, an extra-spicy curry plate, and other goods.
The PARCO café also sells a Siren magnetic hook.
Before seeing the film, these are:
products that encourage people to like the movie's new character in advance.
After the film, they become:
products depicting the creature that captures islanders, pickles them, eats them, and ultimately pursues the true offenders.
A child may like the Siren before the film, become frightened of it during the film, and then encounter it again in the shop afterward.
Scary.
But cute.
Still want it.
That contradiction becomes part of the character's appeal.
The Siren is not merely an enemy.
A victim whose companion was killed.
A perpetrator who eats islanders who may have had nothing to do with the crime.
Capable of conversation.
Tormented by spicy curry.
Round and cute.
Strong.
Frightening.
Because these traits coexist, the Siren is unusually easy to merchandise.
Even AA batteries become part of the product context
In the story, AA batteries are not just a prop.
The body of the person who ate the mermaid.
Eternal life.
Identifying the culprit.
The Siren's “I understand.”
The battery is a key that links all of them.
As a result, when a collaboration item or prize uses batteries, emphasizes batteries, or lights up, even an ordinary specification can start to look like a black joke.
The production side has not announced that every battery-powered product was designed as a reference to the culprit's body.
But for viewers who know the story, that meaning can arise anyway.
Just seeing an AA battery can give the culprit away.
An everyday object turns into a clue.
The before-and-after reversal works outside the movie in exactly the same way
The movie itself and the collaboration merchandise run on the same principle.
After the end credits
- Child: the Sirens are playing.
- Adult: the Sirens are heading toward the culprits' island.
“I understand”
- Child: the Siren promised not to attack anymore.
- Adult: the Siren has figured out who the culprit is.
Siren plush toy
- Before the movie: a cute new character.
- After the movie: a creature that pickles and eats islanders.
Shiruko Sand
- Before the movie: a movie-collaboration snack.
- After the movie: a snack that recalls the scene used to lure the mermaid.
Simmered red fish
- Before the movie: a prepared dish recreating food from the story.
- After the movie: a dish that evokes the mermaid's flesh and the crime surrounding it.
The “Very Well Pickled” plate
- Before the movie: a cute miso-flavored plate.
- After the movie: a plate that looks like a recreation of the islanders' food-processing step.
What the story and its marketing share is this:
they do not explain every meaning in advance.
Put the cute thing first.
Add the context later.
Change the meaning of something the viewer has already seen.
Then let products around town continue the effect after the viewer leaves the theater.
Is this a bait-and-switch?
A parent and child who have not read the original manga may enter the theater having seen only:
- Chiikawa;
- a southern island;
- a cute Siren;
- snacks;
- plush toys.
Then the film gives them dark caves, predation, miso pickling, immortality, concealment, and a punishment that may never end.
Some viewers will understandably feel, “Nobody told me about this.”
But the promotion does not completely hide the frightening side.
The official site includes a “Subjugation Arc” TV commercial.
The trailers also show combat and danger.
PARCO's introduction describes Chiikawa as a story that is “fun, bittersweet, and a little hard.”
So this is not a complete disguise.
A more accurate description is:
cuteness is used as the entrance, while the full depth of the fear is not spelled out in advance.
That is also normal operating procedure for Chiikawa.
Do you people have a heart?
Give them Shiruko Sand.
Give them simmered red fish too.
Show them the Siren plush toy.
Watch the film.
Understand what the story means.
On the way home, see the same products again.
Every meaning has changed.
Do you people have a heart?
Probably.
That is exactly why the campaign can use the order in which the audience comes to understand each meaning.
