Season 3 contains 166 chapters. It starts taking place hundreds of years before the first two seasons. It begins by telling the history of Janus and Edermask. How a war-ravaged continent led to their promise to end war, and each brother's vastly different means to that end. After the flashback finishes, the story continues where it left off at the end of Season 2.
This season introduces a unique coloring scheme. Daytime parts are all in red-tone and nighttime is dark blue-tone. The blood-red shades represents the bloody after-effect of war. Outside of the war zone, the colors revert to normal.