Synopsis
The world lies in ruins after a series of natural disasters, forcing survivors to do whatever it takes to endure the madness. One young boy named Kakugo, granted incredible martial arts and a supremely powerful suit of armor by his late father, is tasked with making the world—or at least his school—a safer place. However, his sister possesses matching skills and equipment, and she is on a mission to bring peace to the world by exterminating humanity.