This Show would be historically accurate, if History was more awesome.

Sengoku is a word used to reference Japan's Age of Warring States, a very bloody and violent time proceeding the fall of the Ashikage Shogunate. It was comprised of nearly 150 years of wars involving numerous factions all vying for power.

When an entire nation of people start stabbing themselves over conflicting political ideologies, it can be a bit embarrassing. The standard method of compensating for this is to romanticize the period has much as fucking possible. Think of our Civil War, for example. Well, this civil war lasted a century and a half, so it takes a LOT of romanticizing. We're talking dozens of video games. Movies and books as well, I'm sure.

One of those video games, called Sengoku Basara ("Devil Kings" in the US) has been made into an anime. This anime particularly follows the "heroes" of the various sides of the conflicts. They are called "heroes" because their boundless passions enabled them to gather huge numbers of followers, and defeat countless enemies by themselves. Well, their boundless passion, and their giant robot suits, various ninjutsu skills, and ability to spit balls of fire and bolts of lightning from their weapons; those things helped as well. This "historical account" (imagine those quotation marks being at about twice the normal font size) is as heavily stylized, as it is heavily awesome. One guy fights with six katanas at once, and modifies his horses to have motorcycle handlebars instead of reigns. Another dude makes tornadoes with his axe, and rather than ride a single horse, he rides two at once (one foot in each saddle, like horseshoes). Romantic conversations are carried on while stabbing people.

This might not be how it actually happened, but it damn well ought to be.