NIPPON SANGOKU: The Three Nations of the Crimson Sun poster

TV series

NIPPON SANGOKU: The Three Nations of the Crimson Sun

2026TV-MA1 season8.6 / 10

A revolution sparked by nuclear war, natural disaster, and misrule leads to the collapse of Japanese society. The country splits into three nations vying for hegemony, and the Sangoku era begins. Aoteru Misumi, a former agricultural officer, vows to reunify Japan. He rises through the ranks with only his knowledge and eloquence. Witness the legend of the man later hailed as a genius strategist.

Streaming, rental and purchase options

Where to watch in United States

Checked Sep 3, 2026

NIPPON SANGOKU: The Three Nations of the Crimson Sun is available to stream on Prime Video in United States. Use the direct links below to open the provider.

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Synopsis

A revolution sparked by nuclear war, natural disaster, and misrule leads to the collapse of Japanese society. The country splits into three nations vying for hegemony, and the Sangoku era begins. Aoteru Misumi, a former agricultural officer, vows to reunify Japan. He rises through the ranks with only his knowledge and eloquence. Witness the legend of the man later hailed as a genius strategist.

Season 1 episodes

Choose an episode, then use the watch options above for the show.

Episode 1

An Oath for Peace

26m7.1 / 10

Aoteru Misumi is a young man living in the countryside of Ehime, Yamato. Working as an agricultural officer, he lives a quiet life with his wife, Saki. One day, they are visited by a horseback procession fit for a king. The most extravagant horse-drawn carriage in this procession carries none other than Denki Taira, the lord of home affairs and true ruler of Yamato.

Episode credits

Directed by Kazuaki TerasawaWritten by Teruko Utsumi

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 2

Toryumon

26m7.4 / 10

Having lost the love of his life, Aoteru is determined to fulfill the promise he made to her of creating a peaceful world. He travels to Osaka to take the exam given by Borderland General Mitsuhide Ryumon in the hopes of serving under him. Upon arriving, he finds a cheap hotel to stay in. But Aoteru will find no rest there, as he immediately encounters a certain individual.

Episode credits

Written by Teruko Utsumi

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 3

Imperial Council

26m7.7 / 10

Aoteru and Yoshitsune Asama take the Toryumon, an employment exam required to work under Ryumon. The conditions for passing are simple: the examinees must bring him to his knees. It seems that knowledge of the art of war alone will not be enough. They will also need their resourcefulness to get through this trial.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 4

The Seii Coup

26m7.2 / 10

Three years after passing the Toryumon, Aoteru is working hard under Ryumon to perform his duties to their fullest. Meanwhile, Yamato sends a demand for unconditional surrender to the neighboring nation of Seii, which has been unstable due to the harsh winter conditions. In Seii, the embers of rebellion are quietly stoked.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 5

The Borderland General Corps Marches Out

26m7.5 / 10

A new dictatorship comes to power in Seii when Ohga Wajima suggests subduing Yamato by force. She establishes her administration overnight, declaring her resolve across the land. Ohga quickly captures the hearts of her people with her charm and political prowess, and within Seii, momentum grows to launch a campaign against Yamato.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 6

Eve of War

26m7.8 / 10

Tonotsugu Taira, Denki Taira's heir, is ordered by Fuji III, the emperor of Yamato, to go to Kanazawa with the Borderland General Corps' Right Lieutenant General, Goh Sugoh. While Tonotsugu is optimistic about this opportunity, Sugoh harbors concerns that it is a trap set by Seii.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 7

The Kanazawa Night Raid

26m7.8 / 10

When Seii invades Kuzuryu Castle, tensions between Seii and Yamato come to a head. Sensing something strange about the situation, the Yamato army led by Ryumon decide to halt their advance. Meanwhile, having gone ahead, Tonotsugu's men enter Seii without knowing that war has broken out, and are given a warm welcome by Muuton Nagao.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 9

Tears for Yayakichi

26m7.8 / 10

The decisive clash between Ohga and Ryumon ends in Ryumon's victory, secured through the "Empty Fort Stratagem," leaving Ohga's loss of authority plain for all to see. With her prestige in ruins, Ohga turns to the counsel of her trusted strategist, Yayakichi Hei.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 10

Reunion of Mortal Enemies

26m7.8 / 10

Thanks to Yayakichi's strategy, Ohga restores her authority and rises once more. Though the Yamato forces are pushed to the brink, Ryumon and his strategist, Kaku, have already entrusted a bold plan to a young man to break this dire stalemate.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 11

Lie on Firewood and Council the Heavens

26m7.8 / 10

Aoteru finally reunites with Denki Taira, but his eyes are fixed on something else entirely. As Aoteru reveals the true meaning behind his call to retreat, Denki stands firmly opposed. In the end, all decisions are placed in the emperor's hands.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode 12

The Fall of Seii

26m7.8 / 10finale

Through a heartfelt plea, Aoteru finally persuades the emperor. Yoshitsune delivers an imperial decree to Ryumon, who prepares to face the Seii forces. Meanwhile, Seii schemes to annihilate Yamato with its "Winter General Strategy." As both sides act, the conflict between the two nations reaches its climax.

Where to watch NIPPON SANGOKU: The Three Nations of the Crimson Sun

Episode information updated Sep 18, 2026

More about NIPPON SANGOKU: The Three Nations of the Crimson Sun

Cast

Kensho OnoAoteru Misumi (voice)
Jun FukuyamaAsama Yoshitune (voice)
Takashi NagasakoDenki Taira (voice)
Asami SetoSaki Higashimachi (voice)
Megumi HanNarrator (voice)
Kazuhiro YamajiMitsuhide Ryūmon (voice)
Yuichi NakamuraYasuaki Kaku (voice)
Taihi KimuraFuji III (voice)

Credits

Written by
Teruko Utsumi

Production details

Status
Returning Series
Series type
Scripted
Episodes
12
Original language
Japanese
Original title
日本三國

Networks & production

  • Prime Video
  • Studio KafkaJapan
  • Amazon MGM StudiosUnited States
  • Twin EngineJapan

Themes

animebased on mangaboldcivil wardefiantdesperatedignifieddivided nation