The Undying Princess on Patrol Won't Be Conquered

A seal is a prison for those who failed to die. And every prison will one day break.

After hundreds of years, she, an immortal, once again sets out on the road to revenge and the truth.

But in this world, where all things wither even as change races onward, most of her old enemies have already turned to dust. So how, and against whom, can she take her revenge?