NIPPON SANGOKU: The Three Nations of the Crimson Sun

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.

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.

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.

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.

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.

Muuton's night raid on Kanazawa ended in failure, but the main forces of the Seii army continue their advance on the Borderland General Corps. The decisive battle between Ohga and Ryumon draws near.

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.

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.

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.

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