Nippon Sangoku: The Three Nations of the Crimson Sun

Aoteru Misumi, a low-ranking official without a prestigious military background or aristocratic ties, lives in a Japan that's been shattered by nuclear warfare, natural disasters, and corruption, leading to the collapse of the country and its division into three superpowers. These warring nations, reminiscent of the Three Kingdoms Period, engage in a brutal struggle for dominance, driven by a lust for power and control over the remaining Japanese territory. Misumi's ambition is to bring an end to the senseless bloodshed plaguing the nation and unify the fractured country.