Nihon Sangoku: A War Chronicle Anime Full of Strategy and Schemes

The manga-based series 'Nihon Sangoku' aired as a Spring 2026 anime, and I have watched every episode.
The creative world-building, charming characters, and unpredictable plot developments were fascinating, and it was a work that truly moved me, so I would like to write down my thoughts.

Synopsis

In a near-future Japan, civilization has collapsed due to nuclear war, and the country is divided into three kingdoms. Among them, the largest power, Yamato, was a monarchy, but in reality, the Minister of Home Affairs, Denki Taira, held control over domestic politics.

The protagonist, Aoteru Misumi, who lived in a farming village, vows to unify the three kingdoms and aim for a peaceful world after a certain incident. This is the story of the man who would later be called a brilliant military strategist.

Impressions

Meiji era x Lost Technology x Romance of the Three Kingdoms is bound to be interesting

I was captivated by the setting of a near-future Japan where civilization has regressed to the early Meiji period and is divided into three kingdoms. I love the culture of the early Meiji period. Even though there was the Meiji Restoration, there was still a samurai culture, and Western culture was also coming in; the combination of formal attire and swords is so cool. I also loved Rurouni Kenshin.

The stage of this work is a world that has declined from a modern era with advanced civilization, and the presence of past relics, like lost technology, is a setting that is irresistible for sci-fi fans. The feeling of having advanced technological tools suddenly appear in a Meiji-era world view is just amazing.

In addition to the Meiji x Lost Technology elements, the fact that the country is divided into three and fighting means that a 'Romance of the Three Kingdoms' has begun. Japan has basically been governed by a single government since the Edo period following the warring states period of rival warlords, so it is interesting to see a story about what would happen if it were divided into three kingdoms in the near future; it's a fresh and intriguing idea.

Both allies and enemies are human and charming characters

Honestly, the first episode was quite a harsh story that hit me hard, and I thought about stopping watching. However, as I continued to watch from the second episode onwards, I became hooked on how the protagonist Misumi overcomes difficulties with his intelligence and his silver tongue.

Also, from the second episode onwards, it was great that charming characters appeared, such as Yoshitsune Asama (commonly known as Tsune-chan), a confident but incredibly strong guy; Mr. Ryumon, who is both a politician and a general; and the genius strategist Kaku. In the end, even that hateful Denki Taira, the incompetent Emperor Fuji III, and Taira's spoiled son all had charm, and I felt that the characters were portrayed as truly human.

Misumi and Tsune-chan, who were initially at odds, have come to trust each other completely, and their relationship makes me grin. In the Sei-i arc, I felt fired up by Tsune-chan, who believes that Misumi will be able to persuade the Emperor.

A war chronicle full of strategy and schemes, as if it were an SRPG

Regarding the scenario, perhaps because it is a war chronicle and narration is occasionally inserted, it had the appeal of watching a historical drama. In the introductory Toryumon arc, the way the country prospers due to the increase in crop yields from Misumi's agricultural reform plan felt like a simulation game like 'SimCity,' which was very satisfying.

Tsune-chan breaking through with his natural martial arts was also a good scene that made the most of each person's strengths. After that, the fact that both enemies and allies use skillful strategies and tactics to outwit each other, and that even allies engage in schemes and plots against one another, creating a battle of wits, was irresistible for an SRPG fan like me.

The importance of rules that also applies to salarymen

I thought the story of Nihon Sangoku also relates to business. First is the difficulty of organizing a country and an army, in other words, people. For both Misumi and Oura Wajima, the importance of law in organizing troops and the strict enforcement of it to maintain that law were emphasized.

Perhaps the theme of this work is to continue correcting corrupt laws and order. It is the same in business; rules are indeed important, and I have recently felt, as someone in a management position, that creating appropriate rules and having them followed is necessary for organizational order and stable output.

And I watched thinking that a leader who wavers loses trust, which also applies to business. I want to become a manager with a core that wavers as little as possible. Not just as an organization, but from an individual perspective, the schemes, thorough preparation, and skillful groundwork of Ryumon, Kaku, and Misumi are just too competent.

Impressions (with spoilers)

In the war against the Sei, I felt that the battles were depicted very thoroughly. The Sei camp was portrayed with their own thoughts, a lack of unity, and the difficulty of managing a country and its soldiers. Because it was depicted so well, I found myself empathizing with the Sei camp, making the final battle heart-wrenching.

In the Yamato camp, while I was frustrated by the foolish Taira faction holding them back, I felt my heart swell as the Taira son began to trust Sugo, who had saved his life, and started to question his father, Minister Taira. Even the incompetent ruler, Fuji III, began to develop a sense of self through Misumi's passionate speech, and things were slowly moving in a better direction.

I thought the genius strategist Kaku would fight alongside Misumi for a while before eventually passing the torch to him, so I was a bit surprised when it happened so soon. Also, the assassination of Ouko in the final episode happened without any detailed depiction, so I couldn't fully process it. It was shocking, especially since I was curious about Ouko's state of mind and his future.

Summary

This was a work that moved me with its original worldview, charming characters, and unpredictable scenario development. I am eagerly hoping for an anime season 2!

I think those who like elements of the Meiji era, lost technology, the Three Kingdoms, or SRPGs will especially get hooked. Even if not, it is an interesting work, so if you are curious, please give it a watch!