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NIPPON SANGOKU: The Three Nations of the Crimson Sun S1E12 — The Fall of Seii

9.1

NIPPON SANGOKU: The Three Nations of the Crimson Sun•Season 1•Episode 12

The Fall of Seii

9.1/10 · 671 votesJun 21, 202626 min

Ranked #2 of 12 in Season 1•+0.4 vs season avg

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

Previous episodeE11 · Lie on Firewood and Council the Heavens Next seasonSeason 2

Seasons2

Season 1 Episodes12

An Oath for Peace still

An Oath for Peace

Toryumon still

Toryumon

Imperial Council still

Imperial Council

The Seii Coup still

The Seii Coup

The Borderland General Corps Marches Out still

The Borderland General Corps Marches Out

Eve of War still

Eve of War

The Kanazawa Night Raid still

The Kanazawa Night Raid

Dragon vs. Tiger still

Dragon vs. Tiger

Tears for Yayakichi still

Tears for Yayakichi

Reunion of Mortal Enemies still

Reunion of Mortal Enemies

Lie on Firewood and Council the Heavens still

Lie on Firewood and Council the Heavens

The Fall of Seii still

E12 9.1Now viewing

The Fall of Seii

Cast13

Kensho Ono

Kensho Ono

Aoteru Misumi (voice)

Jun Fukuyama

Jun Fukuyama

Asama Yoshitune (voice)

Takashi Nagasako

Takashi Nagasako

Denki Taira (voice)

Asami Seto

Asami Seto

Saki Higashimachi (voice)

Megumi Han

Megumi Han

Narrator (voice)

Kazuhiro Yamaji

Kazuhiro Yamaji

Mitsuhide Ryūmon (voice)

Yuichi Nakamura

Yuichi Nakamura

Yasuaki Kaku (voice)

Taihi Kimura

Taihi Kimura

Fuji III (voice)

Minami Tsuda

Minami Tsuda

Ōga Wajima (voice)

Kenyu Horiuchi

Kenyu Horiuchi

Yayakichi Hei (voice)

Shuichiro Umeda

Shuichiro Umeda

Nagao Muuton (voice)

Shunsuke Sakuya

Shunsuke Sakuya

Akii Kura (voice)

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Episode Summary

"The Fall of Seii" is episode 12 of NIPPON SANGOKU: The Three Nations of the Crimson Sun season 1. It scored 9.1/10 from 671 votes, ranking #2 of 12 episodes this season (season average 8.7). It aired on June 21, 2026.

Continue to Season 2 Best of Season 1