On the Frustratingly Perfect First Episode of the Anime 'Nihon Sangoku'

'Nihon Sangoku' is a TV anime that began airing in April 2026, based on the manga of the same name by Ikka Matsuki, currently serialized in Shogakukan's 'MangaONE'.
I had heard of the title before, and I started watching it with the casual mindset of, 'As an otaku, I should at least check out the first episode...' (I have to maintain this kind of self-awareness, or I rarely get around to trying new works). However, I was surprised by a first episode that was so perfect it far exceeded my expectations. I hadn't heard of the production company, Studio Kafka, but they might be incredibly impressive...
However, I added the caveat 'frustratingly' to the article title. The reason is that while there is no doubt this is a perfect first episode, the very fact that I am made to think so comes with a feeling of having been 'outplayed,' as if I have fallen right into the work's trap.

To use an analogy, it might be a story about the 'difference between a genius and a brilliant student'.
I think the first episode of 'Attack on Titan' is undoubtedly 'genius.' The punchline that runs through the work, 'That day, humanity remembered,' the flashy action using 3D Maneuver Gear, the opening theme cutting in, the focus on Eren, and the heavy worldview being revealed little by little through interactions with those around him. And waiting at the end is the shock of his mother being eaten by a Titan. It is a flawlessly crafted first episode that you can't help but admire.
In contrast, the first episode of 'Nihon Sangoku' does not rely on so-called 'genius' ideas. The setting has a certain sense of déjà vu, and the plot is extremely simple and cliché. There is even a danger that it could fall into mere 'emotional porn' if one wrong step is taken, but what makes it a perfect first episode is not only the exquisite sense of balance inherited from the original work, but also the skill of the excellent animation expression. 'Nihon Sangoku' is a 'brilliant student' type of work, created by steadily accumulating acquired efforts.
In terms of Sentai shows, it feels like the Blue Ranger is pretending to be the Red Ranger. And because the very color that such a work wears links to the character of the protagonist, Aoteru Misumi, this story presents a multi-layered charm.

In this article, I will introduce the perfection of the first episode of the anime 'Nihon Sangoku' in three chapters. Please be aware that from the second chapter onwards, it contains spoilers for the first episode, so those who have not watched it should be careful.

1. The Skill of Music and Color Design

The first episode of 'Nihon Sangoku' begins with an avant-title that introduces the setting of the work's world on a vertical screen reminiscent of recent short videos.

As I mentioned in the introduction, it is a patchwork of settings that have a sense of déjà vu, such as 'post-apocalypse,' 'Meiji-era nostalgia,' and 'modeled after Chinese historical stories.' I was first taken aback by the fact that it is practicing head-on what seems to be written on the first page of a creative textbook: 'Originality is born from the combination of existing elements.'
And in fact, this setting is interesting.
The protagonist, Aoteru Misumi, is a person well-versed in the knowledge of the old civilization, but the fact that 'Zexy' (a wedding magazine) is mixed in among the books he reads, and that he speaks of 'the peak wait time at Universal Studios being 760 minutes' as a historical fact, plays a role in the comedy direction similar to 'Narou-kei' (web novels) where modern people play an active role in another world.

The reason why such a setting, which could be taken as absurd, is shown not to be cheap is due to its exquisite sense of balance.
The sluggish Japanese economy and the accelerating declining birthrate are undeniable realities, and the war between the US and Iran uses 'nuclear issues' as a keyword. The Great East Japan Earthquake and COVID-19 are too fresh in our memories, and the Nankai Trough earthquake that could happen at any time, and the widening gap caused by capitalism, are already pressing real-world problems.
It is armed with a very honor-student-like theory that is too realistic to criticize as 'lacking reality.'

And above all, I think it is the power of music that makes this avant-title work.
Let's think about it flatly: what kind of music would be appropriate to play behind the narration quoted above?
As it happens, this work plays mysterious, stylish Western music. (I looked it up, but I didn't know the song title. I assume it's an original soundtrack for the anime.)
That sense is quite hateful. It is a mismatch for any setting, such as Meiji Japan or the Three Kingdoms, and that unpretentious coolness is the coolest thing.

The following opening theme, 'Hidane' by Tatsuya Kitani, is also the best.
The literary-style lyrics and the tone of Japanese instruments leave an impression of old-fashioned Japan, but the high-pitched brass instruments evoke a Western feel, and the polyrhythm of the percussion creates a ritualistic ethnic music feel. It seems to symbolize the patchwork worldview of this work, which is established by an exquisite balance despite being a jumble.

Also, the ending theme, 'Chikai' by Leina, begins in a way that overlaps with the line Aoteru Misumi quotes from the 'Sun Tzu' Art of War, 'First, occupy the battlefield...' What is shown is a close-up of Aoteru's eyes looking far away, and we cannot see the full extent of his expression. However, as the song enters the chorus, we viewers see his bare, true feelings. And finally, the first episode concludes with him dropping a cigarette ember into kerosene. Perfect. It is an all-too-perfect collaboration with the music.

One more point, I will also touch on the color design.
In the first episode of this work, until the C-part, which is just a few dozen seconds after the ending, the screen is composed with extremely low saturation as a whole, with clear coloring applied only to important motifs such as Aoteru's eyes and the blood of the characters.

This reflects Aoteru's faded field of vision. While he longs for the peaceful world of the old civilization, he responds to the chaotic world that appears before his eyes with resignation, does not try to put his hard-earned knowledge of military tactics to practical use, and thinks first and foremost about protecting his happy life with his wife, Saki Higashimachi.
It is the climax of the first episode that he vows to reunify Japan and build a 'world of peace.'
The moment Aoteru, who has decided to change the world, sets sail for Osaka, the capital of Yamato, the screen suddenly becomes colorful.

Until then, we viewers are not very conscious of the low saturation of the screen. However, through the contrast of saturation that suddenly becomes vivid here, we are made to understand that this is indeed the beginning of the real story.
Such direction, to put it bluntly, is just a technique. It is very contrived and can by no means be called a high-quality metaphor.
Even though I know that, the flow leading up to this is so perfect that I am completely moved.

In addition to the music and color design mentioned above, this work accumulates various small additive elements, such as the strength of the outlines like 'Demon Slayer,' the commitment to camera work like 'Look Back,' and the cut-in direction like Shaft anime.
Because the technique is very skillful, the feeling of being 'outplayed' accompanies the fact that I am completely moved.
On the other hand, being patchwork and skillful, that is to say, being a 'brilliant student' type of drama, creates the color of the work itself, which is why I have to admit it is a perfect first episode.

2. Saki Higashimachi as a 'Living Character'

I believe the biggest factor that makes the first episode of 'Nihon Sangoku' perfect is its success in maximizing the appeal of the character Koki Higashimachi.

The story begins with the wedding scene of Koki and Aoteru. When Koki tries to have her big moment in a wedding dress, Aoteru objects pedantically, saying, "It's strange for you to wear that when you have no religious backing." However, Koki brushes him off with the carefree reasoning, "I'm wearing it because wedding dresses are cute," and, pinching the hem of her dress, she steps out in front of the guests with a bouncy gait.
Her competitive spirit remains unchanged even when facing those in power.
One day, the Minister of the Interior, Taira no Denki, the de facto ruler of the Yamato Kingdom, arrives in their district and immediately sentences a farmer to be torn apart by carts for no other reason than "because I felt annoyed."
Koki does not hide her anger at Minister Taira's cruel and tyrannical behavior.

In the midst of this exchange, Koki and Aoteru encounter a scene where tax officials of the Taira clan are conducting illegal tax collection and corporal punishment. Incensed, Koki shakes off Aoteru's attempts to restrain her, counters the tax officials with both rhetoric and force, and declares the following.

The next morning, Koki is executed by Taira no Denki.
Aoteru's vision turns blood-red with rage and he is nearly consumed by a desire for revenge, but he remembers his own words, "Hey, calm down for a second? Even if you do something like that, nothing fundamental will change!" and, hiding his fury, he drives the Taira tax official to execution through purely calm rhetoric.
When asked by Minister Taira, "With what feelings did you face this situation?" he responds by quoting the 'Weak Points and Strengths' chapter of 'The Art of War'.
Afterward, while mourning Koki, he wails with raw emotion, swearing that he will turn Koki's words—"If only Aoteru had the courage, he could build a peaceful world"—into reality in the distant future.

The reason many viewers accept this not as a cheap tear-jerker, but as a shocking, sad, and moving development, is likely because they have come to like Koki Higashimachi through her short appearance of just over ten minutes.
She hates crooked things, has an unwavering core, and through the eccentric words and actions that stem from it, she has a positive influence on the stubborn Aoteru. If one were to list only these attributes, it wouldn't be strange for her to be dismissed as a stereotypical character, like a "gal who is nice to nerds" or a "Manic Pixie Dream Girl" in a critical sense.
However, this work succeeds in depicting her three-dimensionally as a "living character."
Where does her physicality come from? The first things that come to mind are the excellent animation techniques, such as the redness on her cheeks that contrasts with the desaturated screen, the character voice by Asami Seto, and her bouncy gait when heading to the wedding.

In addition, the line I quoted earlier seems to have a similar effect.

It is a spirited line that expresses Koki's coolness, but when you think about it carefully, it actually doesn't fit the context of the story very well.
Of the elements listed, the only one directly related to the story at this point is "lineage." Certainly, the fact that the officials are all men seems problematic, but the plot does not foreground inequality based on "gender," and although there is a setting where "refugees are flooding into Japan," there are no characters with different "skin colors" appearing (mentioned in episode 7: added May 22, 2026).
In other words, this line is not meant to be completed within the world of the work, but is interpreted as being directed at us on the other side of the screen and at the modern society in which we live. It is by no means blatant, but Koki is skillfully breaking the fourth wall.

The modern era is a postmodern one where all values have been relativized and it is unclear what is correct.Critic Toshio Okadadescribes the state of a world where "everyone should just believe in what they want to believe" ≒ "one's value is something you create with your own hands"—which is different from the political correctness ideology of "we must acknowledge diversity"—as a "turbulent world" (ransei).
Koki's line quoted above is also a command that we are currently in a "turbulent world." Here, the Yamato Kingdom, set as an extension of modern Japan, changes its meaning from mere "fiction" to something based on the realism of a sketch of reality = "virtual reality," and I think Koki has acquired the physicality of a "living character" that actually exists.

Also, this message denies the value of the talent given at birth = "genius." This links to Aoteru's character.
He was not blessed with his birth and is a typical "talented person" who only gained knowledge through study, and he had no grand ambitions beyond living a happy life with Koki. However, triggered by Koki's execution, he is granted the talent of "courage" post-natally, so to speak, and decides to change the country.
The work depicts Aoteru being such a "talented person" through "talented person"-style animation expression, and Koki's lines encourage meta-empathy for the "talented person" in us viewers. The color of this work is created by multiple overlapping layers.

3. Aoteru Sankaku is an "unreliable narrator"

The first episode of this work leaves a great deal of suspense for the subsequent story. That is, "Aoteru does not speak his true feelings."
Even though his wife was killed, he did not show any emotion on the spot and cornered the tax official with calm rhetoric. In the final scene, one can read a strong will of "parting" from his expression as he swears "to change the world" while wearing a smile mixed with sadness.

The reason Koki lost her life was that she never tried to hide her true feelings. That is her way of life, but in the world of politics swirling with strategy that Aoteru is about to dive into, speaking one's true feelings carelessly could be fatal. In order to fulfill his vow to Koki to "build a peaceful world" and to affirm Koki's way of life with all his heart and soul, Aoteru may have "parted" here with speaking his true feelings in front of others.

This is demonstrated in the opening of episode 4, in the scene where Aoteru, now a supervisor for the Frontier General's unit, hangs the assistant registrar Machiyama.
Here, Aoteru remains detached in two senses.
The first is his friendly relationship with Machiyama. Machiyama begs for mercy, saying, 'I thought of you like my own son,' but although Aoteru bows his head and says, 'Thank you so much for everything,' he does not overturn the decision.
The second is the grudge regarding the execution of Shoki. The crimes Machiyama committed were illegal looting, murder, and sexual assault, all backed by his position as a government official. These are charges that inevitably recall the tyranny of the Taira clan and the resulting death of Shoki, but the reason for the hanging is strictly 'to uphold the authority of military law,' and he shows no righteous indignation beyond that.
Now, where does Aoteru's true heart lie? Was bowing to Machiyama sincere, or just a performance? Is his strict adherence to military law, as he says, to maintain discipline, or is he aiming for career advancement, or is it because of what happened to Shoki?
In other words, Aoteru has become an 'unreliable narrator' here.

If exaggeration is permitted, one could even say that the de facto protagonist from episode 2 onwards has shifted to Asama Yoshitsune, who joined the Frontier General's unit at the same time as Aoteru.
Yoshitsune, who first appears in episode 2, hides a strong desire for advancement and recognition beneath his stylish demeanor, and he reveals his true feelings candidly through monologues. In inverse proportion to this, the volume of Aoteru's monologues decreases significantly, so we, the viewers, end up following the story mainly through Yoshitsune's perspective.

In the image above, the scene where promotions are announced in the Frontier General's unit, this contrast is particularly striking. While Yoshitsune, having received the happy news, voices his inner thoughts with 'Promotion, here I come!', Aoteru only replies with a sharp 'Yes!' and the scene immediately cuts to the next.
How far into the future is Aoteru looking? Just as when he quoted the 'Weak Points and Strengths' chapter of 'The Art of War' in front of Taira no Denki, he stops showing his true expression even to us, the viewers.

And this is no exception for characters other than Aoteru.
Ryumon Mitsuhide, a Frontier General who doesn't mind rubbing his forehead on the ground for his goals; Kaku Yasuaki, a strategist who exudes intelligence and unfathomable depth; Wajima Ouga, the new leader of Sei who acts as if he cares for the people while being aggressive about war. Every single one of them seems like a character who is not straightforward and harbors hidden agendas.
If even Taira no Denki's behavior as a tyrant has some ulterior motive...?

We usually accept the text of manga and anime only at face value (this also tends to connect to the 'otaku equals childish' theory...). However, the first episode of this work plays the role of decisively impressing upon us that there are lies in the characters' lines and hidden motives in their actions.
Filmmaker Alfred Hitchcockexplained that suspense is created 'when there is a bomb under the table that the characters are unaware of, but the audience knows about in advance.' It is made clear that the characters are each hiding bombs, and we don't know when they will explode. This is the true nature of the great suspense that underlies 'Nihon Sangoku'.

I cannot help but look forward to how this story, which began with such an overly 'brilliant' and frustratingly perfect first episode, will unfold from here on.
Finally, I will end by quoting the lines of the strategist Kaku Yasuaki, who is always too cool and unfair.