A thousand years ago, the Central Divine Emperor led his armies against an invasion by foreign races, then mysteriously vanished. Now the invaders have returned, and an age of great upheaval begins. The protagonist is a young man from a remote region. After a sudden turn of events, a modern special-forces military doctor transmigrates into him, leaving two souls in one body. Thus begins the path to becoming both a Sword Emperor and a Scoundrel Emperor.
