Nippon Sangoku Episode 4 Story & Preview Cuts Released: Three Years Since the Toryumon

The story and preview images for Episode 4 of the TV anime Nippon Sangoku (JP: 日本三國) have been revealed. This episode will air on Sunday, April 19, 2026, at 9:00 PM (JST) with the world's fastest streaming available on Prime Video. It will subsequently be available on various other streaming platforms.

Episode 4 Story

Three years have passed since Seiki successfully broke through the " (Toryumon)". Under the Ryumon administration, he has been single mindedly and diligently fulfilling his duties.

Meanwhile, the Yamato Kingdom sends an ultimatum demanding unconditional surrender to its neighbor, Seii. The Seii nation's internal government is currently destabilized due to extreme cold weather conditions.

The trial where martial prowess and tactical ingenuity intersect begins now.

Introduction

In a near-future Japan, civilization has collapsed following a revolution triggered by nuclear war, natural disasters, and political corruption. The nation has been fractured into three territories, plunging the country into a "Three Kingdoms" era of warring states vying for supremacy.

Aoteru Misumi, a humble local official, sets his sights on the "Reunification of Japan." Armed with a wealth of knowledge and masterful oratory skills, he begins his steady ascent through the ranks of power.

The legend of the man who would later be hailed as a genius strategist begins now—!

Nippon Sangoku Characters List

Spring 2026 Anime list

Source : Nippon Sangoku Official